PROJECT: Move project files to their own folder in the root

Instead of within 'source'. Project files aren't really source, so it was odd to
have them there. The paths in old project files are NOT updated.
PROJECT: Move old projects to their own folder

To reduce clutter in the main project folder
HMF_CONVERTER: Correct the folder name to remove 'obj' reference and correct 'hfm' to 'hmf'

Closes #10