added custom color button
disabled color change if black is chosen
added measurement widget, added horizontal line control
fixed horizontal cursor interaction with triggers
began channel power implementation, fixed markers being behind spectral trace
fixed trigger move issue
fixed several trigger bugs, added a spinbox to enter the horizontal spinbox's value
added a seperate cursor for horizontal cursor
removed color butten, changed trace number label to a color button
added missing variable
began implementing infrastructure for channel power
added channel power function, which gets called by each trace
changed channel power algorithm to account for BRW, channel power labels now have the same color as the trace
improved channel power calculation
disabled cursor spinbox when not in use
hide channel power labels while in IQ CONNECTOR mode
changed name of reflevel label to maximum
added spectral offset measurement tool
triggers are only disabled if the device is tuned outside of trigger range
changed spectral_offset to reference_offset