EXT-1947 EXT-1945 EXT-1919 EXT-2088 appearance edit dummy param + animation fix

Several fixes here:
1) minor rename in argument of setIsDummy
2) corrected parameter set_by_user to calls of setVisualParamWeight where we
   shouldn't be animating
3) ensured finally that mIsDummy is set properly for all wearable parameters
4) ensured that mIsDUmmy is set properly for non-wearable based parameters on
   your own avatar

Code reviewed by Bigpapi