Create OMS and OMC

[schulz-alexander]

Split OpenMixerControl into:

• oms (OpenMixerService) - is the "Mixer", interacts with the audio hardware, implements an OSC server
• omc (OpenMixerControl) - is the "GUI and Surface", interacts with Displays, Button, Encoders, Faders, implements an OSC client

[schulz-alexander]

TODOs

• split Mixerparameter in to Mixerparameter and Clientparameter -> Split Mixerparameters and Clientparameters #66
• Metering
• Effects State as Mixerparameter
• Calculate EQ-Parameters in Client, Store EQ-Settings in Server
• Control CARD via Mixerparameter
• Page Setup: build Versioninfo in Server and expose as OSC

[schulz-alexander]

TODO

• add Callback to osc-client and to send Mixerparameter changes to Server