etekcity: actually write the profile to the device
etekcity: actually write the profile to the device

implement both .write_profile() and .write_button()

Signed-off-by: Benjamin Tissoires <7a0e50e3f6a0939db82b6a8a423c08a163896f41@gmail.com>

whot/libratbag,bentiss/libratbag-old,bentiss/libratbag-old,cvuchener/libratbag,bentiss/libratbag-old,NoXPhasma/libratbag,whot/libratbag-old,libratbag/libratbag,whot/libratbag,NoXPhasma/libratbag,cvuchener/libratbag,whot/libratbag,cvuchener/libratbag,NoXPhasma/libratbag,libratbag/libratbag,libratbag/libratbag,whot/libratbag-old,whot/libratbag-old