Add @types + tslint devDependencies

Author: aminya

package.json

@@ -36,6 +36,15 @@
     "ssh2": "^0.8.4",
     "underscore-plus": "*"
   },
+  "devDependencies": {
+    "@types/atom": "^1.40.1",
+    "@types/ssh2": "^0.5.41",
+    "@types/fuzzaldrin-plus": "^0.6.0",
+    "@types/object-hash": "^1.3.1",
+    "@types/semver": "^7.1.0",
+    "@types/underscore": "^1.9.4",
+    "tslint": "latest"
+  },
   "scripts": {
     "postinstall": "node script/postinstall.js"
   },