Feature request: Adding custom support.

Ability to add block ids to the config to be able to be veined. Then you don't have to add support for ores that do not work because the players can.

The issue names no files, tests, or entry points. Start by locating the mod's configuration and vein eligibility logic, then determine how configured block IDs should be represented and validated; done means players can configure additional blocks for veining without code changes.

Written by the indexing model from the issue text.