multi files working version + refactoring

common/helper.py

@@ -0,0 +1,8 @@
+import argparse
+
+
+def get_argparser():
+    parser = argparse.ArgumentParser(description='NVCCPlugin params')
+    parser.add_argument("-t", "--timeit", action='store_true',
+                        help='flag to return timeit result instead of stdout')
+    return parser