path: use findParentJob() in getToolControllers()

When applying dressup, the dressup became the new parent of the path feature object.
Then, in the getToolControllers() function, obj does not point systematically to the parent job.
An existing function findParentJob() is more suitable as it looks for the job also into grandparents.

src/Mod/Path/PathScripts/PathUtils.py

@@ -227,7 +227,7 @@ def getToolControllers(obj):
     '''returns all the tool controllers'''
     controllers = []
     try:
-        parent = obj.InList[0]
+        parent = findParentJob(obj)
     except:
         parent = None