After discussing some changes to the current protocoll we came up
with this stable protocoll v2:
[VER:8][SEQ:8][ID:8 ][RES:8]
[        PIXEL:32*n        ]
[           ...            ]
[           ...            ]

With PIXEL:32 being in this order:
[G  :8][R  :8][B  :8][W  :8]

This led to merging of the two functions as we now only send GRBW.
RGB strips should either discard the W byte or use it's value to
recalculate it's RGB values.