* create a ChType_Enum to go with SetChannelEnum
* resolve build errors for ChType_Enum PR
* fixing build errors for simulator and others for cmd_enums.c
* added ChType_ReadOnlyEnum and assocaited enum selftests
* ChType_Enum simulation and memory error corrections
* ChType_Enum documentation updates
* ChType_Enum autoexec example corrections
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Co-authored-by: root <root@stonacek.nz>
Co-authored-by: kcstonacek <kcstonacek@stonacek.nz>
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