More DMR and NXDN decoding plus minor fixes

Add decoding of EMB and FLCO on DMR Voice. This displays talkgroup and radio ids on an indented line below the sync line.

Change slottype (Color Code and Frame Type) on DMR Data to have error correction. Added display of Color Code.

Moved display of CACH to an indented line below the sync line. Expanded the SLCO infomation.

Added new NXDN sync types to cover trunked systems, both Kenwood (Type-C) and Icom (Type-D).

Added display of Channel Type from the NXDN lich. Added descrsmbling of lich.

DMR filter is now also used for 9600 NXDN. Feed samples into all three filters to eliminate stale data on mode switch.

Changed DMR Filter values and changed floats to doubles in the filter code. Added a simple allpass filter to equalize the filter delays.

Fixed problem with -l switch specified as having a parameter when it does not.

Changed DMR and NXDN only options to set better parameters.