Mesh computation, shape measurement, and spherical harmonic decomposition

[nrepina]

• Add task Surface Mesh Multiscale for generating mesh from 3D cell segmentation
• Add task Spherical Harmonics from Label Image for calculating spherical harmonics and meshes from label images
• Add task Mesh Measurements to calculate morphology features and spherical harmonics given an input mesh
• Temporary bundle of aics_shparam with fixes for pixel anisotropy and separate task for harmonic calculation
• Improve stability of multiscale mesh generation by padding array
• Improve smoothing and decimation of meshes during multiscale mesh generation
• Add feature functions for measuring mesh morphology (volume, surface area, extent, solidity, concavity, asymmetry, aspect ratio, and normalized surface area to volume ratio)
• Add functions to calculate convex hull, bounding box, and concavity of meshes
• Update documentation and integration tests for new tasks