[BSP converter] De-duplicate materials during conversion.

Apply encoding detection patches to JMS files.

Part of moving everything over to UTF-8.

[TagDumper] Re-write code to use the new helper class.

[Guerilla] Add surface index to firing position definition

Update README.md

[structure-2-dae] Include material symbols for portals.

[structure-2-dae] Include material symbols for portals.

[Lightmap Dumper] Include bitmap size in bitmap mapping.

[Custom lightmaps] Fix locale issue.

[Custom lightmaps] Switch to custom UV format.