EMSUSD-968 shorter nice names

- Ui Nodegraph Node -> Ui
    Example: Ui Nodegraph Node Pos -> Pos
    Justification: the section is already titled Node Graph Node
- Translate Rotate Pivot -> Rotate Pivot
  Translate Scale Pivot  -> Scale Pivot
    Example: Translate Scale Pivot -> Scale Pivot
    Justification: pivot are always translations, no need to say it, it is implicit in being a pivot.
- Translate Rotate Pivot Translate -> Pivot Rotate Translate
  Translate Scale Pivot Translate  -> Pivot Scale Translate
    Example: Translate Scale Pivot Translate -> Scale Pivot Translate
    Justification: follow what is done for the pivot.

Author: pierrebai-adsk

lib/usdUfe/utils/Utils.cpp

@@ -216,6 +216,9 @@ std::string prettifyName(const std::string& name)
         { "usd", "USD" },
         { "mtlx", "MaterialX" },
         { "lookdevx", "LookdevX" },
+        { "Ui Nodegraph Node", "Ui" },
+        { "Translate Scale Pivot", "Scale Pivot" },
+        { "Translate Rotate Pivot", "Rotate Pivot" },
     };
 
     static const auto subRegexes = []() {