Undo processing on scenario.

[num0005]

Copied from #10

• Just barely working. Crash on load if the resource and AI resource tag block isn't deleted from the scenario resource tag block. solved by 5781246

• Decorators tag block needs to be moved back from sbsp and repaired if needed.

• Seems to have issues with tag references being fine in Guerilla but being empty in Sapien. This is related to the environment objects tag block in sbsp. tag block will overwrite whatever exists in scnr.

[General-101]

• Scenario cluster data tag block needs its sbsp reference readded. Just add it back in the same order as structure bsp

• Structure BSP lighting tag block needs it's sbsp reference readded. Just add it back in the same order as structure bsp