Offload render() to C or C++ for fastest possible rendering performance

[sn]

Currently, the render() method simply constructs the HTML output is basic Python, but in order to make is faster, implement the render method in C or C++ and offload/call via Python.

[DEV-KONO]

Have you considered the use of Cython? I can check into it later if its okay with you.

[sn]

@DEV-KONO I have not actually, but that's a very good idea and I'd be open to it for sure.

[Bennylave]

@sn created a PR for this.