Add non-standard CompressionOptions support

[wcampbell0x2a]

• You ever wonder "what if a squashfs had custom compression options that I am forced to emit because the kernel is expecting this?". If this is you, then have fun with this addition! This allows one to implement compression_options for CompressionAction and emit.. whatever you want as the the compression option bytes.
• Change superblock struct in FilesystemWriter As Soon As Possible to make sure everything can just use those settings.
• Update tests to be un-padded for custom compression, easier to see the diff's with biodiff and such.

[github-actions[bot]]

Benchmark for f341738

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.4±0.01ms | 2.4±0.01ms | 0.00% | | only_read/tplink_ax1800 | 6.3±0.02ms | **6.2±0.01ms** | **-1.59%** | | unsquashfs/full | 11.2±0.24ms | 11.1±0.19ms | -0.89% | | unsquashfs/full-path-filter | **7.7±0.08ms** | 7.8±0.11ms | **+1.30%** | | unsquashfs/list | **8.1±0.14ms** | 8.3±0.27ms | **+2.47%** | | unsquashfs/list-path-filter | 7.2±0.11ms | 7.2±0.13ms | 0.00% | | write_read/netgear_ax6100v2 | **1283.3±5.57ms** | 1292.1±8.68ms | **+0.69%** | | write_read/tplink_ax1800 | 7.1±0.05s | 7.1±0.05s | 0.00% |

[github-actions[bot]]

Benchmark for e0b67cb

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.4±0.01ms | 2.4±0.00ms | 0.00% | | only_read/tplink_ax1800 | 6.3±0.01ms | **6.2±0.01ms** | **-1.59%** | | unsquashfs/full | 11.2±0.25ms | **10.9±0.11ms** | **-2.68%** | | unsquashfs/full-path-filter | 7.8±0.25ms | **7.6±0.06ms** | **-2.56%** | | unsquashfs/list | 8.2±0.15ms | **8.0±0.48ms** | **-2.44%** | | unsquashfs/list-path-filter | 7.3±0.35ms | 7.1±0.32ms | -2.74% | | write_read/netgear_ax6100v2 | **1270.1±2.85ms** | 1280.6±14.91ms | **+0.83%** | | write_read/tplink_ax1800 | 7.1±0.08s | **7.0±0.02s** | **-1.41%** |

[github-actions[bot]]

Benchmark for b683c31

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.4±0.00ms | 2.4±0.01ms | 0.00% | | only_read/tplink_ax1800 | 6.2±0.01ms | 6.2±0.01ms | 0.00% | | unsquashfs/full | **11.0±0.21ms** | 11.4±0.32ms | **+3.64%** | | unsquashfs/full-path-filter | 7.8±0.16ms | 7.8±0.11ms | 0.00% | | unsquashfs/list | **8.0±0.09ms** | 8.1±0.09ms | **+1.25%** | | unsquashfs/list-path-filter | 7.2±0.10ms | 7.2±0.19ms | 0.00% | | write_read/netgear_ax6100v2 | **1281.9±9.54ms** | 1285.6±3.35ms | **+0.29%** | | write_read/tplink_ax1800 | 7.1±0.05s | 7.1±0.06s | 0.00% |

[github-actions[bot]]

Benchmark for dcb240b

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | **2.3±0.00ms** | 2.4±0.01ms | **+4.35%** | | only_read/tplink_ax1800 | 6.2±0.05ms | 6.2±0.01ms | 0.00% | | unsquashfs/full | 11.0±0.18ms | 11.0±0.20ms | 0.00% | | unsquashfs/full-path-filter | 7.6±0.27ms | 7.6±0.08ms | 0.00% | | unsquashfs/list | 7.9±0.13ms | 8.0±0.10ms | +1.27% | | unsquashfs/list-path-filter | **7.0±0.06ms** | 7.1±0.10ms | **+1.43%** | | write_read/netgear_ax6100v2 | **1274.4±6.68ms** | 1280.3±4.30ms | **+0.46%** | | write_read/tplink_ax1800 | 7.1±0.01s | 7.1±0.02s | 0.00% |

[github-actions[bot]]

Benchmark for 5fd8328

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.4±0.00ms | **2.3±0.00ms** | **-4.17%** | | only_read/tplink_ax1800 | 6.2±0.03ms | 6.2±0.01ms | 0.00% | | unsquashfs/full | 10.8±0.14ms | 10.9±0.16ms | +0.93% | | unsquashfs/full-path-filter | **7.5±0.05ms** | 7.6±0.07ms | **+1.33%** | | unsquashfs/list | 7.9±0.06ms | 7.9±0.09ms | 0.00% | | unsquashfs/list-path-filter | **7.0±0.05ms** | 7.1±0.34ms | **+1.43%** | | write_read/netgear_ax6100v2 | **1273.8±2.26ms** | 1277.4±3.10ms | **+0.28%** | | write_read/tplink_ax1800 | **7.0±0.01s** | 7.1±0.03s | **+1.43%** |

[github-actions[bot]]

Benchmark for 8dda05e

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.4±0.00ms | **2.3±0.00ms** | **-4.17%** | | only_read/tplink_ax1800 | 6.2±0.01ms | 6.2±0.00ms | 0.00% | | unsquashfs/full | 11.0±0.12ms | 11.1±0.20ms | +0.91% | | unsquashfs/full-path-filter | **7.6±0.05ms** | 7.7±0.06ms | **+1.32%** | | unsquashfs/list | **7.9±0.06ms** | 8.0±0.06ms | **+1.27%** | | unsquashfs/list-path-filter | 7.1±0.04ms | 7.1±0.04ms | 0.00% | | write_read/netgear_ax6100v2 | **1274.8±2.44ms** | 1287.3±8.63ms | **+0.98%** | | write_read/tplink_ax1800 | 7.1±0.01s | 7.1±0.02s | 0.00% |

[github-actions[bot]]

Benchmark for 8b9c9de

Click to view benchmark

| Test | Base | PR | % | |------|--------------|------------------|---| | only_read/netgear_ax6100v2 | 2.3±0.04ms | 2.3±0.03ms | 0.00% | | only_read/tplink_ax1800 | 5.9±0.10ms | 5.9±0.10ms | 0.00% | | unsquashfs/full | 10.7±0.25ms | 10.8±0.12ms | +0.93% | | unsquashfs/full-path-filter | 7.7±0.26ms | **7.4±0.15ms** | **-3.90%** | | unsquashfs/list | 8.0±0.13ms | **7.9±0.05ms** | **-1.25%** | | unsquashfs/list-path-filter | 7.1±0.16ms | **6.8±0.14ms** | **-4.23%** | | write_read/netgear_ax6100v2 | 1233.4±9.59ms | 1228.8±9.78ms | -0.37% | | write_read/tplink_ax1800 | 6.9±0.03s | **6.8±0.09s** | **-1.45%** |