Create vector3_for_2d_rendering.py (#2496)

* Create vector3_for_2d_rendering.py

Edited for passing travis test

* Delete vector3_for_2d_rendering.py

* Create vector3_for_2d_rendering.py

* Update vector3_for_2d_rendering.py

Compressed the line 19 to 28 into 19 to 21

* Update vector3_for_2d_rendering.py

* Update vector3_for_2d_rendering.py

* Update vector3_for_2d_rendering.py

completly corrected pep8 errors using Pycharm IDE

* Update vector3_for_2d_rendering.py

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Dhruv <[email protected]>

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Dhruv <[email protected]>

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Dhruv <[email protected]>

* Update vector3_for_2d_rendering.py

* Update vector3_for_2d_rendering.py

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Christian Clauss <[email protected]>

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Christian Clauss <[email protected]>

* Apply suggestions from code review

Co-authored-by: Christian Clauss <[email protected]>

* Update vector3_for_2d_rendering.py

Added A few extra names to __author__ 😄

* Update vector3_for_2d_rendering.py

Used Pycharm to fix PEP8 errors, doctest errors

* Update vector3_for_2d_rendering.py

Added enough doctests

* Update graphics/vector3_for_2d_rendering.py

Co-authored-by: Christian Clauss <[email protected]>

* Remove second main()

Co-authored-by: Dhruv <[email protected]>
Co-authored-by: Christian Clauss <[email protected]>