[DynamicLevies] codegen for on_new_holder handler for immediate levy law application upon title creation

[zijistark]

Goal is to catch case of a new title being created out of thin air and immediately applying the appropriate levy law to it if its tier >= the primary title of the holder at that moment.

• New codegen variant of dynlevy.0 that only sets the law for the title in question, avoiding the many loops over all demesne titles tier >= primary title (OPTIONAL)
• Otherwise, just call the dynlevy.0 event immediately. The difference should be minimal.
• Trigger filters only cases where FROMFROM is undefined (how to catch title creation without the ambiguous on_create_title, I reckon).
• Triggers title tier > count (though should theoretically be covered by above)
• Triggers realm_size = $OFFSET+1