Add a workflow to create release build.

[shenhanc78]

This PR setup a workflow to create a release build. Below is the steps to create a release

1. submit all changes to master branch
2. create a RELEASE.md file under the root directory, the "RELEASE.md" can be created via github's draft new release text helper page
3. submit RELEASE.md to master branch
4. create a release tag, a release tag is like "v[0-9]+.[0-9]+.[0-9]+", this can be done locally:
   git tag <tag_name>
5. push the tag, this can be done on the local machine:
   git push <repo> tag <tag_name>
6. the work flow will be triggered

This workflow can also be manually triggered to create a release for older versions.

The workflow shall be further improved so that we can create the release on the github webpage and let it trigger the release build.

[snehasish]

I think this will default to using g++ as the compiler. Is that desired?

[shenhanc78]

This can be built with clang toolchain too, either works. Except for clang, we need to install necessary packages in the previous step.

[snehasish]

I think we should build the release binaries with clang to minimize surprises. Also the runner should already have clang-13 [1] on it so it's not necessary to install clang as a package.

https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md

[shenhanc78]

Thanks. I will add -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ and test build on my personal repo.

[snehasish]

LGTM modulo the comment to use clang when building the binaries we release.