chore(package): update loopback-component-explorer to version 6.0.0

Closes #29

Author: greenkeeper[bot]

package.json

@@ -54,7 +54,7 @@
     "loglevel": "1.4.1",
     "loopback": "3.8.0",
     "loopback-boot": "2.25.0",
-    "loopback-component-explorer": "4.2.0",
+    "loopback-component-explorer": "6.0.0",
     "loopback-component-fixtures": "1.1.0",
     "loopback-context": "1.0.0",
     "loopback-testing": "1.4.0",