ZynAddSubFX: default pitch wheel bend range to 100

Even though ZynAddSubFX does not support pitch wheel sensitivity RPN
events and thus we can't update the pitch range from LMMS automatically,
at least default to 100 semitones pitch wheel bend range so behaviour
is consistent with default pitch range in LMMS.

plugins/zynaddsubfx/src/Params/Controller.cpp

@@ -35,7 +35,7 @@ Controller::~Controller()
 
 void Controller::defaults()
 {
-    setpitchwheelbendrange(200); //2 halftones
+    setpitchwheelbendrange(100); //2 halftones
     expression.receive    = 1;
     panning.depth         = 64;
     filtercutoff.depth    = 64;