Update package names to use 'img' npm organisation

npm/win32-ia32/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@sharpen/sharp-win32-ia32",
+  "name": "@img/sharp-win32-ia32",
   "version": "0.0.1-alpha.8",
   "description": "Prebuilt sharp for use with Windows x86 (32-bit)",
   "homepage": "https://sharp.pixelplumbing.com",
@@ -15,8 +15,7 @@
   "preferUnplugged": true,
   "files": [
     "lib",
-    "versions.json",
-    "THIRD-PARTY-NOTICES.md"
+    "versions.json"
   ],
   "publishConfig": {
     "access": "public"