Add "Include" to extension TSConfig Files (#25860)

**Bug**
Most VSCode extensions currently specify `"exclude"` in their `tsconfig.json` but not `"include"`. This may result in extra files being included in each project

**Fix**
Add  `"include": ["src/**/*"]` to all extension tsconfig files

extensions/vscode-colorize-tests/tsconfig.json

@@ -8,7 +8,7 @@
 		],
 		"sourceMap": true
 	},
-	"exclude": [
-		"node_modules"
+	"include": [
+		"src/**/*"
 	]
 }