Integrating with DearPyGui

[prybicki]

DearPyGui is a very feature rich GPU-accelerated GUI library in python (with advanced charts and a node editor). Perhaps it would make sense to integrate it into taichi? I would love features from both of these worlds in a single API.
Note: I believe it is possible to use them together provided taichi renders to a texture, but there is certainly a performance loss this way.