Updates issues template to differentiate bugs from feature requests and add appropriate labels. (#1860)

* Update issues template to add feature requests and to add default labels.

Author: dinooliva

.github/ISSUE_TEMPLATE .github/ISSUE_TEMPLATE/bug_report.md.github/ISSUE_TEMPLATE renamed to .github/ISSUE_TEMPLATE/bug_report.md

@@ -1,3 +1,9 @@
+---
+name: Bug report
+about: Create a report to help us improve.
+labels: bug, triage-me
+---
+
 Please answer these questions before submitting a bug report.
 
 ### What version of OpenCensus are you using?
@@ -13,4 +19,8 @@ If possible, provide a recipe for reproducing the error.
 ### What did you expect to see?
 
 
-### What did you see instead?
+### What did you see instead?
+
+
+### Additional context
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,19 @@
+---
+name: Feature request
+about: Suggest an idea for this project.
+labels: feature-request, triage-me
+---
+
+**NB:** Before opening a feature request against this repo, consider whether the feature should be available across all languges in the OpenCensus libraries. If so, please [open an issue on opencensus-specs](https://github.com/census-instrumentation/opencensus-specs/issues/new) first.
+
+### Is your feature request related to a problem? If so, please describe it.
+A clear and concise description of what the problem is, e.g. I need to be able to ...
+
+### Describe the solution 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 context or screenshots about the feature request here.