Updated the phony target in the makefile.

Removed accompanying TODO
There is no file that has MIN and MAX, removed TODO
Renamed method to be internal, moved TODO around
Removed build files
Added arg to make the simple-acc.. project build.
Updated arguments to be more strict

- Closer to pebble arguments
- More strict (more warnings is better)
Moving average ticker now has more explicit typing
Made get_latest_frame faster, fewer ops in loop
Dimensions is now a unsigned integer