Updated requirements for new development branch.
Revert "Updated requirements for new development branch."

This reverts commit ff3d94fc8777180d433bda5fad2b0095f2703f7c.
Clean old files up prior to new development.
Set up files for handling TPC layout.
Add framework for easily managing TPC cells in three dimensions.
Switch in new event loop for development code.
Add ability to access unit volumes for algorithm.
Add methods to give variables to the unit volume.
Add framework for feature finder.  Also shift t0 to start by central cathode by default.
Add A Star algorithm for connecting points via path of valid hits.
Add group class for operations on selections of TPC unit volume.
Split functionality for running algorithm and handling the TPC layout into two separate classes.
Create working feature finder for highlighting and returning points of interest through image processing techniques.
Updated requirements.
Refine drawing and create alternate colour schemes for various features.
Merged functionality of unit volume and A Star algorithms point into one class.
Get AStar algorithm sort of working and split recon up into groups
Update to a working path finding algorithm for events with multiple clean exiting tracks.
Updated requirements for new workspace layout...
Implementation of path finding suited to use in TPC Recon