Add `ArraysAs`, `AsArrays`, and corresponding traits for components and uints

[Ogeon]

This adds more casting traits, in addition to #338. These traits fulfill the same purpose as AsRef and AsMut, such as:

use palette::{Srgb, cast::ComponentsAsMut};

let mut image_buffer: Vec<u8> = /* ... */;
let color_buffer: &mut [Srgb<u8>] = image_buffer.components_as_mut();

[github-actions[bot]]

Benchmark for 4ff5c50

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | Cie family/lab to lch | 3.3±0.00µs | 3.3±0.01µs | 0.00% | | Cie family/lab to xyz | 772.7±1.21ns | 773.3±0.77ns | +0.08% | | Cie family/lch to lab | 1220.6±0.62ns | **1208.7±0.75ns** | **-0.97%** | | Cie family/linsrgb to xyz | 319.4±0.34ns | **305.6±4.33ns** | **-4.32%** | | Cie family/linsrgb to xyz - wide::f32x8 | 251.3±0.48ns | 251.4±0.29ns | +0.04% | | Cie family/xyz to lab | 8.6±0.01µs | 8.6±0.02µs | 0.00% | | Cie family/xyz to yxy | **673.2±0.38ns** | 681.0±0.50ns | **+1.16%** | | Cie family/yxy to xyz | 624.1±0.34ns | **619.8±0.33ns** | **-0.69%** | | Matrix functions/matrix_inverse | **13.9±0.01ns** | 14.3±0.01ns | **+2.88%** | | Matrix functions/multiply_3x3 | 9.8±0.01ns | 9.8±0.01ns | 0.00% | | Matrix functions/multiply_rgb_to_xyz | 8.4±0.02ns | 8.4±0.01ns | 0.00% | | Matrix functions/multiply_xyz | 6.0±0.04ns | 6.0±0.04ns | 0.00% | | Matrix functions/multiply_xyz_to_rgb | 6.0±0.03ns | 6.0±0.03ns | 0.00% | | Matrix functions/rgb_to_xyz_matrix | 26.1±0.01ns | **26.0±0.02ns** | **-0.38%** | | Rgb family/hsl to hsv | 739.2±4.27ns | **737.4±1.34ns** | **-0.24%** | | Rgb family/hsl to linear hsl | 7.5±0.01µs | 7.5±0.01µs | 0.00% | | Rgb family/hsl to rgb | 2.4±0.00µs | 2.4±0.00µs | 0.00% | | Rgb family/hsv to hsl | **968.7±1.87ns** | 985.3±0.55ns | **+1.71%** | | Rgb family/hsv to hwb | 231.6±2.40ns | 231.7±2.02ns | +0.04% | | Rgb family/hsv to linear hsv | **6.9±0.01µs** | 7.0±0.00µs | **+1.45%** | | Rgb family/hsv to rgb | 2.1±0.00µs | 2.1±0.00µs | 0.00% | | Rgb family/hwb to hsv | **556.7±1.12ns** | 557.6±0.40ns | **+0.16%** | | Rgb family/hwb to linear hwb | 8.3±0.01µs | **8.1±0.01µs** | **-2.41%** | | Rgb family/linear hsl to hsl | 7.5±0.01µs | 7.5±0.01µs | 0.00% | | Rgb family/linear hsv to hsv | 7.0±0.00µs | **6.9±0.01µs** | **-1.43%** | | Rgb family/linear hwb to hwb | 8.2±0.02µs | 8.2±0.00µs | 0.00% | | Rgb family/linsrgb to rgb | 3.7±0.00µs | 3.7±0.00µs | 0.00% | | Rgb family/linsrgb to rgb - wide::f32x8 | **5.0±0.00µs** | 5.1±0.00µs | **+2.00%** | | Rgb family/linsrgb_f32 to rgb_u8 | 1274.0±0.53ns | 1274.1±0.66ns | +0.01% | | Rgb family/linsrgb_f64 to rgb_u8 | 1365.1±3.57ns | 1365.2±3.10ns | +0.01% | | Rgb family/rgb to hsl | **631.4±0.36ns** | 640.0±2.72ns | **+1.36%** | | Rgb family/rgb to hsl - wide::f32x8 | **456.1±0.22ns** | 456.5±0.25ns | **+0.09%** | | Rgb family/rgb to hsv | **488.7±0.21ns** | 497.5±0.26ns | **+1.80%** | | Rgb family/rgb to hsv - wide::f32x8 | 415.9±1.51ns | 416.1±0.23ns | +0.05% | | Rgb family/rgb to linsrgb | 3.8±0.00µs | 3.8±0.01µs | 0.00% | | Rgb family/rgb to linsrgb - wide::f32x8 | 3.1±0.00µs | 3.1±0.00µs | 0.00% | | Rgb family/rgb_u8 to linsrgb_f32 | 303.4±1.09ns | 303.4±1.10ns | 0.00% | | Rgb family/rgb_u8 to linsrgb_f64 | 309.5±1.41ns | 310.6±1.43ns | +0.36% | | Rgb family/xyz to linsrgb | 362.0±0.20ns | **352.3±0.58ns** | **-2.68%** | | Rgb family/xyz to linsrgb - wide::f32x8 | 248.7±0.24ns | 248.9±1.70ns | +0.08% |

[github-actions[bot]]

Benchmark for e823a25

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | Cie family/lab to lch | **3.5±0.25µs** | 3.8±0.11µs | **+8.57%** | | Cie family/lab to xyz | 808.4±41.32ns | **750.7±28.13ns** | **-7.14%** | | Cie family/lch to lab | 1385.3±37.71ns | **1335.3±90.23ns** | **-3.61%** | | Cie family/linsrgb to xyz | 309.8±21.70ns | 330.3±23.89ns | +6.62% | | Cie family/linsrgb to xyz - wide::f32x8 | 275.0±13.78ns | **245.3±11.80ns** | **-10.80%** | | Cie family/xyz to lab | 9.7±1.28µs | 9.5±0.38µs | -2.06% | | Cie family/xyz to yxy | 767.0±48.17ns | 745.0±33.54ns | -2.87% | | Cie family/yxy to xyz | 639.5±45.29ns | **612.1±26.88ns** | **-4.28%** | | Matrix functions/matrix_inverse | **13.3±0.62ns** | 15.0±0.75ns | **+12.78%** | | Matrix functions/multiply_3x3 | **9.5±0.47ns** | 10.4±0.70ns | **+9.47%** | | Matrix functions/multiply_rgb_to_xyz | 8.3±0.40ns | 8.5±0.46ns | +2.41% | | Matrix functions/multiply_xyz | **6.0±0.38ns** | 6.4±0.36ns | **+6.67%** | | Matrix functions/multiply_xyz_to_rgb | **5.9±0.30ns** | 6.2±0.29ns | **+5.08%** | | Matrix functions/rgb_to_xyz_matrix | 26.8±1.73ns | 27.6±1.38ns | +2.99% | | Rgb family/hsl to hsv | 796.5±35.23ns | 816.3±37.85ns | +2.49% | | Rgb family/hsl to linear hsl | 7.9±0.30µs | **7.3±0.33µs** | **-7.59%** | | Rgb family/hsl to rgb | 2.5±0.12µs | 2.4±0.15µs | -4.00% | | Rgb family/hsv to hsl | 1090.6±56.20ns | **978.8±67.81ns** | **-10.25%** | | Rgb family/hsv to hwb | **240.0±11.13ns** | 261.5±8.47ns | **+8.96%** | | Rgb family/hsv to linear hsv | 7.4±0.43µs | **6.8±0.36µs** | **-8.11%** | | Rgb family/hsv to rgb | 2.2±0.09µs | **2.1±0.12µs** | **-4.55%** | | Rgb family/hwb to hsv | 596.0±30.02ns | 579.0±49.95ns | -2.85% | | Rgb family/hwb to linear hwb | 9.1±0.36µs | **8.2±0.39µs** | **-9.89%** | | Rgb family/linear hsl to hsl | 8.0±0.40µs | **7.5±0.44µs** | **-6.25%** | | Rgb family/linear hsv to hsv | 7.5±0.24µs | **7.0±0.40µs** | **-6.67%** | | Rgb family/linear hwb to hwb | 9.0±0.30µs | **8.0±0.43µs** | **-11.11%** | | Rgb family/linsrgb to rgb | 4.2±0.12µs | **3.7±0.18µs** | **-11.90%** | | Rgb family/linsrgb to rgb - wide::f32x8 | 5.7±0.18µs | **5.0±0.24µs** | **-12.28%** | | Rgb family/linsrgb_f32 to rgb_u8 | 1345.5±85.14ns | 1344.5±95.20ns | -0.07% | | Rgb family/linsrgb_f64 to rgb_u8 | 1360.0±76.62ns | 1397.7±135.06ns | +2.77% | | Rgb family/rgb to hsl | 689.8±38.94ns | **638.2±41.31ns** | **-7.48%** | | Rgb family/rgb to hsl - wide::f32x8 | 510.8±24.33ns | **454.2±25.77ns** | **-11.08%** | | Rgb family/rgb to hsv | 520.9±23.55ns | **491.3±31.69ns** | **-5.68%** | | Rgb family/rgb to hsv - wide::f32x8 | 455.9±22.71ns | 466.0±28.06ns | +2.22% | | Rgb family/rgb to linsrgb | 4.1±0.23µs | 4.2±0.16µs | +2.44% | | Rgb family/rgb to linsrgb - wide::f32x8 | 3.3±0.20µs | 3.4±0.15µs | +3.03% | | Rgb family/rgb_u8 to linsrgb_f32 | 345.9±12.55ns | **311.1±12.53ns** | **-10.06%** | | Rgb family/rgb_u8 to linsrgb_f64 | **314.3±17.95ns** | 338.6±14.34ns | **+7.73%** | | Rgb family/xyz to linsrgb | 371.0±23.45ns | 359.7±25.67ns | -3.05% | | Rgb family/xyz to linsrgb - wide::f32x8 | 265.2±12.92ns | **244.9±13.42ns** | **-7.65%** |

[Ogeon]

bors r+

[bors[bot]]

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