Adding a simple Manchester encoder to rc-core.
Manchester coding is used by at least RC-5 and RC-6 protocols and their
variants.
Signed-off-by: NAntti Seppälä <a.seppala@gmail.com>
Signed-off-by: NJames Hogan <james@albanarts.com>
Cc: David Härdeman <david@hardeman.nu>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>