Add support for Entity Graph to Bulk Insert.

[davidcorbin-atmosera]

Is your feature request related to a problem? Please describe. It is quite challenging when there is a complex relationship between entities to get all of the PK->FK correct, and a large part of this is doing the insets "in the right order" as well as post-patching certain things..

Describe the solution you'd like A clear and concise description of what you want to happen.

Describe alternatives you've considered Using a regular DbContext and DbSets with single operations works using standard EF.

Additional context Other (paid) extensions seem to have this capabilitity..