Remove "bundleless" usage

[nikophil]

Based on #110 and #311 (comment) we would like to remove "bundleless" usage.

Here are some thoughts:

• all env vars such as FOUNDRY_RESET_CONNECTIONS or FOUNDRY_RESET_OBJECT_MANAGERS should be passed as config [feat] [remove bundleless usge] use config instead of environment variables #320
• add something like FOUNDRY_RESET_ODM_OBJECT_MANAGERS [feat] [remove bundleless usge] use config instead of environment variables #320
• "bundleless" usage should not require doctrine (there is presently an error when requiring foundry without doctrine) - the factories would automatically be with withoutPersisting() behavior
• we could deprecate using TestState with KernelTestCase - triggered if the bundle isn't enabled. Then we could say "TestState is only applicable to non-Kernel (unit) tests" [feat] [remove bundleless usge] configure global state with config #322

[kbond]

we need to keep the ability to add global state in

We do but I wonder if this could be configured?

zenstruck_foundry:
    global_state:
        - invokable.service # just a service with ::invoke()
        - App\Stories\StoryThatIsAService
        - App\Stories\GlobalStory # if not a service, just run GlobalStory::load()
        - ...

Then global state could be used in your dev environment when loading fixtures. Stories as services could now be used as global state too.

If this can be done, maybe we can deprecate TestState::addGlobalState() too.