decouple the opentsdb data source from core (#113588)

* enable linting rules for opentsdb

* remove core imports

* update plugin.json

* write backend standalone files

* remove frontend core imports

* add yarn workspace

* remove core import for the plugin

* update grafana dependency

* update package.json

* add jest config

pkg/tests/api/plugins/data/expectedListResp.json

@@ -1580,7 +1580,7 @@
       "keywords": null
     },
     "dependencies": {
-      "grafanaDependency": "",
+      "grafanaDependency": "\u003e=10.3.0-0",
       "grafanaVersion": "*",
       "plugins": [],
       "extensions": {