mc/classic: Fix slab going missing when it shouldn't

Signed-off-by: Jakob Bornecrantz <wallbraker@gmail.com>
mc: Add more folder and filepath getters

Signed-off-by: Jakob Bornecrantz <wallbraker@gmail.com>
mc: Refactor texture importer code a bit

Signed-off-by: Jakob Bornecrantz <wallbraker@gmail.com>