feature: Add Async for loading Infrahub data

[jjeff07]

Currently the sync package uses sync calls to Infrahub to load the data to diff. This takes an extremely large amount of time for larger datasets. It would be much more efficient to use async calls to query all the data.

[petercrocker]

Hi @jjeff07 this is a known scaling challenge, and we've prototyped an alternate architecture, and will be working on it over the coming months. If you'd like to have a specific conversation on our plans, please reach out.