add GitHub workflow for unit testing and npm publish

[wujjpp]

1. add auto unit tesing for pushing
2. add npm-publish workflow

[wujjpp]

@wey-gu

1. auto unit tesing, https://github.com/wujjpp/nebula-node/runs/6814883959?check_suite_focus=true
2. for #9 , please setup secrets.npm_token for this project

https://github.com/wujjpp/nebula-node/blob/enhance-ci/.github/workflows/npm-publish.yml#L59

[wey-gu]

@wey-gu

1. auto unit tesing, https://github.com/wujjpp/nebula-node/runs/6814883959?check_suite_focus=true
2. for publish to package repo #9 , please setup secrets.npm_token for this project

https://github.com/wujjpp/nebula-node/blob/enhance-ci/.github/workflows/npm-publish.yml#L59

You are amazing @wujjpp I will request the org admin to do it tomorrow.

[wey-gu]

I guess you meant gh actions rather than gitlab 🙃

[wujjpp]

I guess you meant gh actions rather than gitlab 🙃

@wey-gu GitHub

[wey-gu]

@wujjpp a token should be set to npm_token already, I will merge the PR to see if it's properly set.