Locallab cleanup #1

Cleanup of Locallab and ControlSpotPanel
Removed also useless LocalListener, useless Locallab options

The following improvments have been introduced:
- All Locallab events are now managed with regular RT logics

The following bugs have been corrected:
- Missing "sensiexclu", "struc" (hidden) and "noisechrodetail" (hidden)
adjusters have been reintroduced
- GUI problems reported by @ganned92 have been corrected
- Tone curve could have some weird behavior when mouse was moving a
curve point outside curve editor

rtengine/simpleprocess.cc

@@ -1060,7 +1060,7 @@ private:
             LUTf lightCurveloc(32770, 0);
             LUTf exlocalcurve(65536, 0);
 
-            int maxspot = settings->nspot + 1;
+            int maxspot = 1;
             float** shbuffer = nullptr;
 
             for (int sp = 0; sp < params.locallab.nbspot; sp++) {