CMake: Failure to load Lua `lfs` module

[ProfLander]

Some regression caused while cleaning up the project structure:

* loading script lua_ext.script
! [LUA] SCRIPT RUNTIME ERROR
! [LUA]  0 : [C  ] __index
! [LUA]  1 : [Lua] e:/stalker-anomaly/bin/..\gamedata\scripts\axr_main.script(325) : on_game_start
! [LUA]  2 : [Lua] e:/stalker-anomaly/bin/..\gamedata\scripts\_g.script(82) : 
! [LUA] e:/stalker-anomaly/bin/..\gamedata\scripts\lua_ext.script:7: module 'lfs' not found:
	no field package.preload['lfs']
	no file '.\lfs.lua'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lua\lfs.lua'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lua\lfs\init.lua'
	no file '.\lfs.dll'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lfs.dll'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\loadall.dll'
! [LUA]  0 : [C  ] __index
! [LUA]  1 : [Lua] e:/stalker-anomaly/bin/..\gamedata\scripts\axr_main.script(325) : on_game_start
! [LUA]  2 : [Lua] e:/stalker-anomaly/bin/..\gamedata\scripts\_g.script(82) : 
! [SCRIPT ERROR]: e:/stalker-anomaly/bin/..\gamedata\scripts\lua_ext.script:7: module 'lfs' not found:
	no field package.preload['lfs']
	no file '.\lfs.lua'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lua\lfs.lua'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lua\lfs\init.lua'
	no file '.\lfs.dll'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\lfs.dll'
	no file 'E:\xray-monolith\_build\System.Clang.AVX\Binaries\Verified\loadall.dll'
! [ERROR] --- Failed to load script lua_ext