feat: Trying some TextMate Grammar for JBang directives

I have no idea what I'm doing. It'ts most likely wrong, certainly suboptimal, but looks half decent in java files
Can't figure out how to enable it properly in build.jbang files though.

Signed-off-by: Fred Bricon <fbricon@gmail.com>

language-support/jbang.tmLanguage.json → language-support/build.jbang.tmLanguage.json

@@ -1,11 +1,13 @@
 {
-    "name": "JBang",
-    "scopeName": "source.jbang",
+    "name": "Build JBang",
+    "scopeName": "source.build.jbang",
     "patterns": [
       {
         "comment": "source.java is defined in https://github.com/microsoft/vscode/blob/main/extensions/java/syntaxes/java.tmLanguage.json",
         "include": "source.java"
+      },
+      {
+        "include": "inline.jbang"
       }
-    ],
-    "uuid": "b67884ea-cc0a-4f99-b680-7ee7c3bb04d8"
+    ]
   }

language-support/inline-jbang.tmLanguage.json

@@ -0,0 +1,25 @@
+{
+  "name": "jbang",
+  "scopeName": "inline.jbang",
+  "injectionSelector": "L:source.java -comment -string",
+  "patterns": [
+    {
+      "contentName": "meta.embedded.block.jbang",
+      "match": "^(//)(DEPS|JAVA|MAIN|FILES|SOURCES|PREVIEW|MODULE|DESCRIPTION|GAV|COMPILE_OPTIONS|JAVAC_OPTIONS|RUNTIME_OPTIONS|JAVA_OPTIONS|NATIVE_OPTIONS|REPOS|MANIFEST|CDS|KOTLIN|GROOVY|JAVAAGENT)\\s+(.*)$",
+      "captures": {
+        "0":{
+          "name":"directive.jbang"
+        },
+        "1":{
+          "name":"comment.line.double-slash.java"
+        },
+        "2": {
+          "name": "keyword.directive.jbang"
+        },
+        "3": {
+          "name": "string.directive.jbang"
+        }
+      }
+    }
+  ]
+}

package.json

@@ -48,8 +48,18 @@
 		"grammars": [
 			{
 				"language": "jbang",
-				"scopeName": "source.jbang",
-				"path": "./language-support/jbang.tmLanguage.json"
+				"scopeName": "source.build.jbang",
+				"path": "./language-support/build.jbang.tmLanguage.json"
+			},
+			{
+				"injectTo": [
+					"source.java"
+				],
+				"scopeName": "inline.jbang",
+				"path": "./language-support/inline-jbang.tmLanguage.json",
+				"embeddedLanguages": {
+					"meta.embedded.block.jbang": "jbang"
+				}
 			}
 		],
 		"javaExtensions": [