Added a tool to compare changes of font metrics against another set of metrics.

- Created `compare.py` to generate an X/Y axis comparisons.
- Switched configuration from INI files to YAML to simplify processing.
- generate.py:
  - Converted processing to use mfgames_tools
  - Added switches for TTF, OTF, and SFD generation.
  - Removed hardcoded values.
- Reorganized fonts into their own direction and updated Makefile to automatically build it via implicit rules.
- Added dependency installation in the Makefile.