Moved .gitignore
Migrated code from bogie to tripod

USART (but keeping the code in place for additional ports)
SerialProtocol (Only removed BogieCommon dependency)
RingBuffer (Only removed BogieCommon dependency)
avr_compiler (no changes)
makefile (only changed MCU type and source files)
tripod.c (only contains an empty main)
Ignored .link files

No, these aren't ipod files.
This is just an extension I'm using to signify a link to a pdf,
to make it faster for me to switch between code and documentation.
Started code for servos

I have a rough description of how it will work, and one function
written.
I also added comments on where to find the hardware documentation for
the various things that need to be implemented.  (Camera, accelerometer,
barometric pressure sensor, and servos)