Creating default GitHub issue templates. (bp #28)

[mergify]

This is an automated backport of pull request #28 done by Mergify.io

Cherry-pick of 4397b04 has failed:

On branch mergify/bp/release/v1.0.26-preview1/pr-28
Your branch is up to date with 'origin/release/v1.0.26-preview1'.

You are currently cherry-picking commit 4397b04.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both added:      .github/ISSUE_TEMPLATE/bug_report.md
	both modified:   .github/ISSUE_TEMPLATE/feature_request.md

no changes added to commit (use "git add" and/or "git commit -a")

To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/