Consistent text formatting

[BobGerman]

All exercises should use consistent formatting for file names, function names, etc.
Luise Freese kindly provided this guide: https://docs.microsoft.com/en-us/style-guide/developer-content/formatting-developer-text-elements.

Pretty sure we are still random on this and need to do an overhaul on all labs.

[BobGerman]

Moved to new repo