receivePostCreateStartingRelics does not trigger a hook

[alexdriedger]

In order to change starting relics, you have to use PostCreateIroncladStartingRelicsSubscriber or PostCreateSilentStartingRelicsSubscriber instead of receivePostCreateStartingRelics.

receivePostCreateStartingRelics does not trigger a hook. This is very confusing.

I haven't tested this with custom characters, but it seems like the hook to change custom starting relics would not work with custom characters.

[alexdriedger]

The hooks for creating a starter deck have a similar structure. If this is changed, the hooks for creating starter decks should be changed too