Ignore flats when loading patches

If a flat has the same name as a patch, and it is found earlier than the patch, SRB2 will attempt to load the flat as a patch, which it should not do. This PR attempts to solve such conflicts by ignoring lumps inside of the flats namespace specifically when loading patches.

added Bug Changed behavior Refactoring Rendering labels

added 1 commit

• 0186e5bc - Fix a mistake

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mentioned in merge request !2450 (merged)

Works great, I merged this and !2450 (merged) locally and no more crashes in SUGOI

merged

mentioned in commit 0aca694f