Py2: [skip ci] provide time._process_time

src/App/FreeCADInit.py

@@ -247,6 +247,12 @@ except ImportError:
     FreeCAD.Console.PrintError("\n\nSeems the python standard libs are not installed, bailing out!\n\n")
     raise
 
+# Backward compatibility to Py2
+import sys
+if sys.version_info.major < 3:
+    import time
+    time.process_time = time.clock
+
 class FCADLogger(object):
     '''Convenient class for tagged logging.