CMake refactors: Allow to choose between system/bundled LibRaw/Lua

[AlynxZhou]

Also tried to make the Lua code cleaner, it could build with both values on my system, but I personally never use Lua scripts, if there are users who find real problems with my changes, please @ me, I'll try to fix.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

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1.8% Duplication

[vredesbyyrd]

Would anyone mind telling me if lua scripts are currently unsupported and the following is expected? I'm using the ansel-git package from the aur, and when running ansel -d lua the following error is returned:

0.751038 LUA ERROR : dt_lua_event_add: wrong number of args for post-import-film, expected 3, got 4
0.789819 LUA ERROR : /home/clu/.config/ansel/lua/tools/script_manager.lua:57: module 'darktable.debug' not found:
	no field package.preload['darktable.debug']
	no file '/home/clu/.lua/darktable/debug.lua'
	no file '/usr/share/lua/5.4/darktable/debug.lua'
	no file '/usr/share/lua/5.4/darktable/debug/init.lua'
	no file '/usr/lib/lua/5.4/darktable/debug.lua'
	no file '/usr/lib/lua/5.4/darktable/debug/init.lua'
	no file './darktable/debug.lua'
	no file './darktable/debug/init.lua'
	no file '/usr/share/ansel/lua/darktable/debug.lua'
	no file '/home/clu/.config/ansel/lua/darktable/debug.lua'
	no file '/usr/lib/lua/5.4/darktable/debug.so'
	no file '/usr/lib/lua/5.4/loadall.so'
	no file './darktable/debug.so'
	no file '/usr/lib/lua/5.4/darktable.so'
	no file '/usr/lib/lua/5.4/loadall.so'
	no file './darktable.so'

It appears script_manager.lua is looking for darktable binaries? Which leads me to believe lua scripts are not supported yet, but I am not a programmer and clarification would be helpful.

[AlynxZhou]

@vredesbyyrd Are you using latest commit? Try re-run the command that you build the AUR package and it will fetch and build the latest commit.

[vredesbyyrd]

@AlynxZhou

I rebuilt just to be sure, but same error persists. I did realize importing some lua scripts directly from luarc works, eg:

require "official/image_path_in_ui"

Some others still fail. OpenInExplorer.lua errors with:

0.765140 LUA ERROR : /home/clu/.config/ansel/lua/contrib/OpenInExplorer.lua:203: field "image" not found for type dt_lua_singleton_lib