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/PathToolBitLibraryGui.py

@@ -210,7 +210,7 @@ class ModelFactory(object):
                 libItem = QtGui.QStandardItem(fn)
                 libItem.setToolTip(loc)
                 libItem.setData(libFile, _PathRole)
-                libItem.setIcon(QtGui.QPixmap(':/icons/Path-ToolTable.svg'))
+                libItem.setIcon(QtGui.QPixmap(':/icons/Path_ToolTable.svg'))
                 model.appendRow(libItem)
 
         PathLog.debug('model rows: {}'.format(model.rowCount()))