Add Makefile

Signed-off-by: Fernando Barillas <fbis251@gmail.com>
Add unlocker header file

Signed-off-by: Fernando Barillas <fbis251@gmail.com>

Signed-off-by: Fernando Barillas <fbis251@gmail.com>
Add lock status check (locked, unlocked, unknown)


Signed-off-by: Fernando Barillas <fbis251@gmail.com>