Add redrawing functions

[Victrid]

As bluetooth connection stability is highly dependent on the Wireless NIC, we need to add the redrawing function.

• Allow user to redraw by blocks
• Read a screenshot and check which part is broken, and generate patches to it.

This is working on version 0.2.0.

[Victrid]

Version 0.2.0.dev0 now supports a clean and draw blocks function in GUI.

If you want to try this version, you need to install with special pip command, which allows you to install a pre-release version:

sudo pip install splatplost==0.2.0.dev0

[TheFlowersSystem]

no idea if i should say this here or make a issue page - but one thing im wondering from the issues with keeping pixels in track would it be possible to have a drawing function, to instead of blocks, it does it row by row?