Add OpenFGA extension (zed-industries#3352)

This PR adds [OpenFGA](https://openfga.dev/) syntax highlighting
extension powered by
[tree-sitter-fga](https://github.com/matoous/tree-sitter-fga).


![](https://github.com/rosnovsky/zed-extension-fga/blob/main/screenshot.png?raw=true)

---------

Co-authored-by: Peter Tripp <[email protected]>

Author: 2 people

.gitmodules

@@ -742,6 +742,10 @@
 	path = extensions/fedaykin-themes
 	url = https://github.com/btriapitsyn/zed-fedaykin-themes.git
 
+[submodule "extensions/fga"]
+	path = extensions/fga
+	url = https://github.com/rosnovsky/zed-extension-fga.git
+
 [submodule "extensions/fiber-snippets"]
 	path = extensions/fiber-snippets
 	url = https://github.com/ayberkgezer/fiber-zed-snippets

extensions.toml

@@ -1900,6 +1900,10 @@ version = "0.1.0"
 submodule = "extensions/oolong"
 version = "0.1.1"
 
+[openfga]
+submodule = "extensions/fga"
+version = "0.2.0"
+
 [openmoji-icons]
 submodule = "extensions/openmoji-icons"
 version = "0.2.0"