supernumerary junctions

Algorithm currently works for junctions with up to two daughters (legs), requiring preprocessing code from synth repo for root systems with (e.g.) whorls. If it encounters a single junction with more than 2 daughters, will go to keyboard. Affects:
numCloseInts: 94
numCloseToSeg: 45
numConnUDClr: 144
numConnUD: 87
numPassLidDn: 121
numSubsBase: 176
numSubsIntDn:118
compExtraEq: 9