initial 'break' command implementation to enter MRI
added hook to call the new break function to SimpleShell's on_console_line_received
merged edge
Merge branch 'edge' into debugbreak

Conflicts:
	src/modules/utils/simpleshell/SimpleShell.cpp
	src/modules/utils/simpleshell/SimpleShell.h
Merge pull request #121 from logxen/debugbreak

Debugbreak
make direction[] in the EndStop module always be boolean