Added M0110A support contributed by skagon@github.
- README is written with markdown notation.
- m0110.c can handles Arrow keys and Calc keys of M0110A.
- EXTRAFLAGS and EXTRALDFLAGS are added in rules.mk to give flags on make command line.
added config option: MATRIX_HAS_GHOST and fixed some on matrix.c
ADD: Build option: MATRIX_HAS_GHOST to enable ghost blocking logic.
FIX: choose matrix buffer type(uint8_t/uint16_t) automatically
depending on column size in matrix.c.
FIX: use uint8_t insted of int in matrix.c.
tmk