Text servers can't be built as extensions

[AThousandShips]

Tested versions

4.4.dev [6395450]

System information

Windows 11

Issue description

While working on #100562 I was attempting to confirm the compilation as an extension would work but ran into unrelated problems, two primary ones currently:

• The builsystem fails due to:

ImportError: cannot import name 'Ansi' from partially initialized module 'methods' (most likely due to a circular import) (modules\text_server_fb\gdextension_build\methods.py):
  File "modules\text_server_fb\gdextension_build\SConstruct", line 7:
    import methods
  File "modules\text_server_fb\gdextension_build\methods.py", line 6:
    from methods import Ansi

This should be easy to fix by renaming modules\text_server_fb\gdextension_build\methods.py to something specific.

• The compilation itself fails due to missing thorvg files, this would likely be due to the SCons file not being up-to-date with changes to the svg module

I can look into fixing the specifics but we should probably evaluate if we want to maintain this functionality as buildable, drop it entirely, or just leave it

Steps to reproduce

Try to build the extension version of either text server module

Minimal reproduction project (MRP)

N/A

[bruvzg]

The compilation itself fails due to missing thorvg files, this would likely be due to the SCons file not being up-to-date with changes to the svg module

Should be fixable by copying file list from svg module`.

@@ -48,7 +48,6 @@ if env["thorvg_enabled"] and env["freetype_enabled"]:
     thirdparty_tvg_sources = [
         # common
         "src/common/tvgCompressor.cpp",
-        "src/common/tvgLines.cpp",
         "src/common/tvgMath.cpp",
         "src/common/tvgStr.cpp",
         # SVG parser
@@ -86,6 +85,7 @@ if env["thorvg_enabled"] and env["freetype_enabled"]:
         "src/renderer/sw_engine/tvgSwImage.cpp",
         "src/renderer/sw_engine/tvgSwMath.cpp",
         "src/renderer/sw_engine/tvgSwMemPool.cpp",
+        "src/renderer/sw_engine/tvgSwPostEffect.cpp",
         "src/renderer/sw_engine/tvgSwRaster.cpp",
         "src/renderer/sw_engine/tvgSwRenderer.cpp",
         "src/renderer/sw_engine/tvgSwRle.cpp",

[AThousandShips]

Will give a fix a test this week and if it's trivial (i.e. a dozen other issues don't arise when fixing these two, won't go whack-a-bug on this) I'll push a fix, otherwise I'll leave it up for discussion

[AThousandShips]

Tried fixing this but ran into some linking errors so won't try to fix this right now