Path: Change filenames in the rest of the Path code

Reflects changes in 
* PathOpGui.SetupOperation()
* GetResources()
* sPIxmap
* pixmap
* *.UI files

Also contains minor translation context renames (these were edits made near to original intent of this commit)

src/Mod/Path/PathScripts/PathArray.py

@@ -235,7 +235,7 @@ class ViewProviderArray:
 class CommandPathArray:
 
     def GetResources(self):
-        return {'Pixmap': 'Path-Array',
+        return {'Pixmap': 'Path_Array',
                 'MenuText': QtCore.QT_TRANSLATE_NOOP("Path_Array", "Array"),
                 'ToolTip': QtCore.QT_TRANSLATE_NOOP("Path_Array", "Creates an array from a selected path")}