Feat/soft delete

[lesagi]

Hi,

I added the option for soft for both InMemory and Relational, need to add Redis

I made it optional, and also I prevent getting the URL if the URL was soft deleted, please let me know what you think

I've merged the release branch to prevent conflicts in the future, that made the PR a bit hard to follow, my new Impl starts at:

"Merge remote-tracking branch 'origin/release/0.2.0' into release/0.2.0"

#79