[Complex Text Layouts] Implement TextServer interface. Implement Fallback TextServer.

modules/text_server_fb/config.py

@@ -0,0 +1,11 @@
+def can_build(env, platform):
+    return env.module_check_dependencies("text_server_fb", ["freetype"])
+
+
+def configure(env):
+    pass
+
+
+def is_enabled():
+    # The module is disabled by default. Use module_text_server_fb_enabled=yes to enable it.
+    return False