Dehardcode the overlay 255 limit

[secsome]

This allows you to register and use more than 255 overlays

[github-actions[bot]]

Nightly build for this pull request:

• compiled-dll-6e3737fdc40ed55b333f6a7dedaed891738f9810.zip This comment is automatic and is meant to allow guests to get latest nightly builds without registering. It is updated on every successful build.

[SMxReaver]

Attempted to test this via adding new entries to the OverlayTypes list and then using ToOverlay to place the entries on the map. This did not crash with or without Phobos or Ares. Even in Vanilla YR, I used the same extended OverlayTypes and was able to successfully build and place an OverlayType that exceeded 254=. I could use some more help in testing this or some advice in how to test this.

In order to correctly visualize the placed OverlayType, you must pan the screen on and off the newly placed OverlayType as mentioned in https://modenc.renegadeprojects.com/ToOverlay

[SMxReaver]

test code.txt

Attached code used for test, the Edit option for my previous comment did not want to upload the file.