Add publisher field to package.json for improved project metadata

Author: mununki

vscode-rescriptdep/package.json

@@ -3,6 +3,7 @@
   "displayName": "Bibimbob",
   "description": "A tool to analyze dependencies between ReScript modules",
   "version": "0.1.0",
+  "publisher": "mununki",
   "icon": "images/rescriptdep_icon.png",
   "galleryBanner": {
     "color": "#1E1E1E",