Test Coverage

Added test coverage for all of the QueryBuilder methods which are the foundation to all of the other classes methods like Card.

package.json

@@ -10,10 +10,20 @@
     "API",
     "SDK"
   ],
+  "scripts": {
+    "test": "mocha --reporter spec --require ts-node/register 'src/**/*.test.ts'"
+  },
   "author": "Bradyn Glines",
   "license": "MIT",
   "dependencies": {
     "axios": "^0.17.1",
     "typescript": "^2.6.2"
+  },
+  "devDependencies": {
+    "@types/chai": "^4.1.1",
+    "@types/mocha": "^2.2.46",
+    "chai": "^4.1.2",
+    "mocha": "^5.0.0",
+    "ts-node": "^4.1.0"
   }
 }