Make lib peerDepend on loopback-connector (#1326)

Author: bobbysmith007

package.json

@@ -34,17 +34,20 @@
  "async-iterators": "^0.2.2",
  "eslint": "^3.12.2",
  "eslint-config-loopback": "^8.0.0",
+ "loopback-connector": "^4.0.0",
  "loopback-connector-throwing": "file:./test/fixtures/loopback-connector-throwing",
  "mocha": "^3.2.0",
  "should": "^8.4.0"
  },
+ "peerDependencies": {
+ "loopback-connector": "^4.0.0"
+ },
  "dependencies": {
  "async": "~2.1.4",
  "bluebird": "^3.1.1",
  "debug": "^2.1.1",
  "depd": "^1.0.0",
  "inflection": "^1.6.0",
- "loopback-connector": "^4.0.0",
  "minimatch": "^3.0.3",
  "qs": "^6.3.0",
  "shortid": "^2.2.6",