Set a config checkpoint before applying a recipe

+1 to this.

Working on it.

I have added the code to add configuration checkpoint when an recipe is activated via project browser,
Please review.

Address review things.

This seems quite straightforward to me, but it needs a test. RecipeActivatorTest already exists and it should be pretty simple to add a couple of assertions that a config checkpoint was created when a recipe was applied.

I addressed the MR feedback and added test assertions for the checkpoints.