Add PS2 keyboard and base device support.
treea7e2d0dfed15965ae5ea48b6c14a3a8b6fbf1ce0
-rw-r--r-- 61 .gitignore
-rw-r--r-- 181 FAILS
-rw-r--r-- 616 Makefile
drwxr-xr-x - device
drwxr-xr-x - include
drwxr-xr-x - marshal
drwxr-xr-x - pc
drwxr-xr-x - ps2
drwxr-xr-x - test
drwxr-xr-x - time