Add script for qrc file -> python file

[marshallmcdonnell]

Used this (https://stackoverflow.com/questions/50627220/loadui-loads-everything-but-no-images-in-pyqt) but I don't know if it really solves our problems. Had to do the following:

1. cd to the icons folder (I moved it to addie sub-directory like I did the ui directory)
2. Run pyrcc4 (or pyrcc5): pyrcc4 icons.qrc -o icons_rc.py
3. Then added from addie.icons import icons_rc at the top of the file (just tried one so far)
4. Run addiedevel.sh

Should add this to the icons directory with a README to explain this

[marshallmcdonnell]

I don't think we need this but keeping issue open till I can test we don't