Add Covalent

[wjcunningham7]

What is this Python project?

Covalent is a framework for distributed computing on heterogeneous infrastructure - from CPUs, to GPUs, to quantum computers and more.

What's the difference between this Python project and similar ones?

• Designed to work across advanced computing hardware such as GPU clusters, (federations of) supercomputers, and quantum computers.
• Native parallelization across diverse hardware types
• Designed for on-premise and cloud deployments

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[wjcunningham7]

@vinta could you approve/merge this when possible? Thanks!