This is needed until we can build UHT on Linux with plugins. So far UBT does not support non-monolithics builds on that platform and having this plugin enabled breaks native compilation.
[CL 2068985 by Dmitry Rekman in Main branch]
- Added program-only plugin support and made UHT script plugin aware
- Added 3 generic script plugins with experimental Lua integration: ScriptGeneratorPlugin (UHT), ScriptPlugin (Engine), ScriptEditorPlugin (Editor-side)
- Lua integration is disabled by default
[CL 2058611 by Robert Manuszewski in Main branch]
