* some start of refactor

* Update SetFlags.cmake

* Update SetCmakeVar.cmake

* Update SetFlags.cmake

* Fix error int-convertion

* more refactor

* clean up include and source file

* fix link of lib

* fix a warning

* fix include in src/actors

* fix include in src/debug

* fix include in src/ending

* fix include in src/engine/actors

* fix include in src/engine/cameras

* fix include in src/engine/editor

* fix include in src/engine/objects

* fix include in src/engine/tracks

* fix include in src/port/ui

* fix include in src/racing

* fix include in src/engine/vehicles

* fix include in subfolder of src/engine

* fix include in src/engine

* fix include in src/enhancements

* fix include in src

* fix switch

* invert common and findlib

* Update SetFlags.cmake

* clean up some workflow

* some splification

* Update build.sh

* Update Game.h

* add header back

* Delete test_check.cmake

* continue

* Update common.cmake

* Fix FI

* FI statue

* Intepr fixes

* Improve

* More interp

* Fix compile

* More interp

* Fix text

* impl Custom track transparency and clip

* Rename DrawWater to DrawTransparency

* Impl z-sorting for transparent mesh

* Interp work

* rename track function

* cleanup

* Revert texture interp

* Further revert

* Update Harbour

* Impl custom track path select

* Add check

* Fix compile

* Fix function extern

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Co-authored-by: MegaMech <7255464+MegaMech@users.noreply.github.com>