Initial tree-sitter grammar for Dgraph DQL

Skeleton grammar supporting blocks, comments, strings, numbers,
and identifiers. Full DQL keyword support planned for Phase 2.

package.json

@@ -0,0 +1,18 @@
+{
+  "name": "tree-sitter-dql",
+  "version": "1.0.0",
+  "description": "Tree-sitter grammar for Dgraph DQL",
+  "main": "grammar.js",
+  "scripts": {
+    "generate": "tree-sitter generate",
+    "parse-test": "tree-sitter parse examples/simple.dql",
+    "test": "tree-sitter generate && tree-sitter parse examples/simple.dql"
+  },
+  "keywords": ["tree-sitter", "dgraph", "dql"],
+  "author": "idchlife",
+  "license": "MIT",
+  "type": "commonjs",
+  "devDependencies": {
+    "tree-sitter-cli": "^0.26.5"
+  }
+}