Build plugin with grafana toolkit (#1539)

* Use grafana toolkit template for building plugin

* Fix linter and type errors

* Update styles building

* Fix sass deprecation warning

* Remove empty js files produced by webpack building sass

* Fix signing script

* Replace classnames with cx

* Fix data source config page

* Use custom webpack config instead of overriding original one

* Use gpx_ prefix for plugin executable

* Remove unused configs

* Roll back react hooks dependencies usage

* Move plugin-specific ts config to root config file

* Temporary do not use rst2html for function description tooltip

* Remove unused code

* remove unused dependencies

* update react table dependency

* Migrate tests to typescript

* remove unused dependencies

* Remove old webpack configs

* Add sign target to makefile

* Add magefile

* Update CI test job

* Update go packages

* Update build instructions

* Downgrade go version to 1.18

* Fix go version in ci

* Fix metric picker

* Add comment to webpack config

* remove angular mocks

* update bra config

* Rename datasource-zabbix to datasource (fix mage build)

* Add instructions for building backend with mage

* Fix webpack targets

* Fix ci backend tests

* Add initial e2e tests

* Fix e2e ci tests

* Update docker compose for cypress tests

* build grafana docker image

* Fix docker stop task

* CI: add Grafana compatibility check

src/datasource/plugin.json

@@ -0,0 +1,40 @@
+{
+  "type": "datasource",
+  "name": "Zabbix",
+  "id": "alexanderzobnin-zabbix-datasource",
+  "metrics": true,
+  "annotations": true,
+  "backend": true,
+  "alerting": true,
+  "executable": "../gpx_zabbix-plugin",
+  "includes": [
+    {
+      "type": "dashboard",
+      "name": "Zabbix System Status",
+      "path": "dashboards/zabbix_system_status.json"
+    },
+    {
+      "type": "dashboard",
+      "name": "Zabbix Template Linux Server",
+      "path": "dashboards/template_linux_server.json"
+    },
+    {
+      "type": "dashboard",
+      "name": "Zabbix Server Dashboard",
+      "path": "dashboards/zabbix_server_dashboard.json"
+    }
+  ],
+  "queryOptions": {
+    "maxDataPoints": true
+  },
+  "info": {
+    "author": {
+      "name": "Alexander Zobnin",
+      "url": "https://github.com/alexanderzobnin/grafana-zabbix"
+    },
+    "logos": {
+      "small": "img/icn-zabbix-datasource.svg",
+      "large": "img/icn-zabbix-datasource.svg"
+    }
+  }
+}