Add Options Builder Factory parameter to ServiceCollectionExtensions.

[countincognito]

…tensions.

Thank you for contributing to EF.DbContextFactory!

The issue or feature being addressed

This small change allows one to pass an optional Options Builder Factory to the ServiceCollectionExtensions, rather than having to rely solely on the default DbContextOptionsBuilder.

Details on the issue fix or feature implementation

None.

Confirm the following

• [X] I have merged the latest changes from the dev branch
• [X] I have successfully run a local build
• [X] I have included unit tests for the issue/feature (updated existing tests)
• [X] I have targeted the PR against the latest dev branch

[vany0114]

Hi @countincognito thanks for taking the time to contribute, I like the changes! Given that my time is very limited these days for open source projects, would you like to be a collaborator? if so, you could take care of the open PRs, make the releases, etc, then I can publish the package. (right now I do so manually but we could improve that as well)