Major pytraction update in April 2024

Changes

General streamlining of traction force calculations
Added option to use dynamic reference frame (bead displacements between time steps)
Added option to use 3D image stacks for 2D traction calculations (plane selection or maximum projection)
Added Boundary Element Method (optional) for solving inverse solution
Updated PIV algorithm (widim function is no longer supported and does not work with newer numpy versions)
h5 result files now include PIV, interpolated displacement and traction fields as well as drift corrected image stacks
Revised plot function to support averaging over multiple images
Added function to calculate strain energy density field and integral over ROI
Option to create .gif movies from time series
Fixed issues with outdated libraries during installation
Fixed issue with incorrect scaling
Added more example data
Added more comments and detailed function headers

rg314 / pytraction