Add nyc code coverage dependency

Author: erisu

.gitignore

@@ -5,3 +5,5 @@ temp
 *.jar
 .vscode
 node_modules/
+coverage/
+.nyc_output/

package.json

@@ -17,6 +17,7 @@
     "apache"
   ],
   "scripts": {
+    "cover": "nyc jasmine",
     "eslint": "eslint bin spec",
     "jasmine": "jasmine",
     "test": "npm run eslint && npm run jasmine"
@@ -36,6 +37,7 @@
     "eslint-plugin-promise": "^4.0.1",
     "eslint-plugin-standard": "^4.0.0",
     "jasmine": "^3.3.1",
+    "nyc": "^13.1.0",
     "tmp": "0.0.33"
   },
   "author": "Apache Software Foundation",
@@ -57,5 +59,15 @@
   "engines": {
     "node": ">=6.0.0"
   },
-  "engineStrict": true
+  "engineStrict": true,
+  "nyc": {
+    "include": [
+      "bin/lib/**",
+      "bin/templates/cordova/**"
+    ],
+    "reporter": [
+      "lcov",
+      "text"
+    ]
+  }
 }