Channel mask

A bit field used in the module library to define which channels to be used in an operation.

Channel mask bit fields are defined in module.h. Note that not all channels are supported in all world regions; see module documentation for details.
 * 1) define CHANNEL_MASK_11                    0x800
 * 2) define CHANNEL_MASK_12                   0x1000
 * 3) define CHANNEL_MASK_13                   0x2000
 * 4) define CHANNEL_MASK_14                   0x4000
 * 5) define CHANNEL_MASK_15                   0x8000
 * 6) define CHANNEL_MASK_16                  0x10000
 * 7) define CHANNEL_MASK_17                  0x20000
 * 8) define CHANNEL_MASK_18                  0x40000
 * 9) define CHANNEL_MASK_19                  0x80000
 * 10) define CHANNEL_MASK_20                 0x100000
 * 11) define CHANNEL_MASK_21                 0x200000
 * 12) define CHANNEL_MASK_22                 0x400000
 * 13) define CHANNEL_MASK_23                 0x800000
 * 14) define CHANNEL_MASK_24                0x1000000
 * 15) define CHANNEL_MASK_25                0x2000000
 * 16) define CHANNEL_MASK_26                0x4000000


 * 1) define ANY_CHANNEL_MASK               0x7FFF800  //Channel 11-26 bitmask