Bump version to 0.7.3

Author: johnwason

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name="general_robotics_toolbox", # Replace with your own username
-    version="0.7.2",
+    version="0.7.3",
     author="John Wason",
     author_email="wason@wasontech.com",
     description="General robotics toolbox developed by RPI",