add an issue template and rename feature request to proposal

[hormes]

Signed-off-by: Fansong Zeng fanster.z@gmail.com

Ⅰ. Describe what this PR does

add an issue template for user support and rename feature request to proposal, we encourage questions and solutions.

[hormes]

please review this pr, thanks @jasonliu747

[jasonliu747]

/lgtm

[codecov-commenter]

Codecov Report

Merging #108 (37b6515) into main (1df5a76) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #108   +/-   ##
=======================================
  Coverage   44.19%   44.19%           
=======================================
  Files          73       73           
  Lines        5965     5965           
=======================================
  Hits         2636     2636           
  Misses       3036     3036           
  Partials      293      293           

Flag	Coverage Δ
unittests	44.19% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 1df5a76...37b6515. Read the comment docs.

[hormes]

/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes, jasonliu747

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [hormes]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment