Add beginGeometry and endGeometry functions to python

[Nitish-bot]

Closes #57

[Nitish-bot]

have also tried to implement a translate_3d and sphere function that appends a sphere to the current geoemetry mesh but Im not sure if it's a particularly correct implementation. It currently throws an error that goes: GeometryNotFound

Upon running the example without the sphere function, it displays nothing but also doesn't throw an error which makes me think all is going well.

[catilac]

Hi @Nitish-bot, thank you again for working on this. I'm finally running your patch. It isn't working, and the PR has gone beyond scope, and we are limited on time for debugging folks' work.

If you would like, remove the sphere implementation, and the translate related code you added as well as it's out of scope and broken. Then make an implementation that demonstrates the begin/end_geometry implementation is actually working, using the other functionality that does work (ie draw_cube).

Lastly, take a screenshot before you re-open this PR demonstrating that it is working.

We are still in the design phase for a lot of the API and much of it will change and we aren't ready to support new contributors for most tasks. We are trying to get there! And I really want you to be involved, but this not a stable enough project to quickly bring people into just yet.