Fix various crafting exp, rank & promotion-related bugs.

[Sehkah]

Fixes

• No exp from crests.
• Recipes with inherent multiple items being crafted only returning no. of queued creations instead of no. of queued creations times inherent no.
• Promotion pop up wrongly shown after promotion.
• Menu getting stuck at item retrieval after rank max has been reached.
• Cascade on delete missing for new databases.
• Pawn craft skill & exp-related columns missing for new databases.

Enhancements:

• Move craft skill configs to a new settings section

Open points:

• C2S_PAWN_DELETE_MYPAWN_REQ missing implementation
• Migration for cascade on delete for existing DBs

Checklist:

• [x] The project compiles
• [x] The PR targets develop branch

[Sehkah]

Does this require altering existing config json files?

Probably not, the code is pretty resilient and just ignores configs it doesn't know, so even if the public server had the intermediate state it should be fine.. Only if you actually add configs to the constructor with a provided settings object does it actually require them to be present (which I didn't in this case).

But maybe it's a good time to introduce something like a unit test for configs.

[Sehkah]

Will tackle settings enhancements in another PR.