add new issue templates

.github/ISSUE_TEMPLATE/1-bug_report.md

+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Read before posting:
+
+- Questions should be posted to https://community.grafana.com
+- Search/filter through opened and closed issues for existing similar bug reports: https://github.com/grafana/grafana/issues?utf8=%E2%9C%93&q=is%3Aissue
+- Checkout FAQ: https://community.grafana.com/c/howto/faq
+- Checkout How to troubleshoot metric query issues: https://community.grafana.com/t/how-to-troubleshoot-metric-query-issues/50
+- Checkout Using Grafana’s Query Inspector to troubleshoot issues: https://community.grafana.com/t/using-grafanas-query-inspector-to-troubleshoot-issues/2630
+
+Please answer and include relevant information below:
+
+### What Grafana version are you using?
+### What datasource are you using?
+### What OS are you running grafana on?
+### What did you do?
+### What was the expected result?
+### What happened instead?
+### If related to metric query / data viz
+### Include raw network request & response
+See Using Grafana’s Query Inspector to troubleshoot issues and/or How to troubleshoot metric query issues above.
+
+### Additional context
+Add any other relevant context, like browser, platform and/or screenshots about the bug report here.

.github/ISSUE_TEMPLATE/2-feature_request.md

+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Read before posting:
+
+- Questions should be posted to https://community.grafana.com
+- Search through opened and closed issues for existing similar feature requests: https://github.com/grafana/grafana/issues?utf8=%E2%9C%93&q=is%3Aissue
+- Write a short and descriptive title describing your feature, e.g. Support X in area Y
+
+Please answer and include below information:
+
+### Is your feature request related to a problem? Please describe.
+A clear and concise description of what the problem is, e.g. I'm always frustrated when [...]
+
+### Describe possible solutions you'd like
+A clear and concise description of what you want to happen.
+
+### Describe alternatives you've considered
+A clear and concise description of any alternative solutions or features you've considered.
+
+### Additional context
+Add any other relevant context, like Grafana version, browser, platform and/or screenshots about the feature request here.
\ No newline at end of file

.github/ISSUE_TEMPLATE/3-question.md

+---
+name: Question
+about: 'Questions should be posted to https://community.grafana.com/'
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Please ask questions on our community site, https://community.grafana.com/. Github are mainly for feature requests and bug reports.