Readded the Master button and related functions.
Updated TX audio equalizer functions to point to correct thread.
More adjustment to the tracking notch filters.
Updated my tx functions to use the correct thread.
Increased the bandwidth of new tracking notch filter to make it
easier to move and resize.
Merge branch 'kd0oss' of https://github.com/alexlee188/ghpsdr3-alex into kd0oss