Added all available information to pybullets getPhysicsEngineParamete…

[sgillen]

…rs and getDynamicsInfo. Found this useful for my own work and figured you all might want it too.

I took what I found in the b3PhysicsSimulationParameters and b3Dynamics structs in sharedMemoryPublic.h, and extended the two methods to pass along all the fields.

I wanted to update the pybullet quickstart document to reflect these changes in this pull request, but it wasn't clear to me how to build that document so I am asking for guidance there.

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