Modernize build and add typescript support progressively

[prakashsvmx]

use parcel for builds ES module and CommonJS

npm run build

Make sure unit/functional tests are running successfully.

SERVER_ENDPOINT="localhost:22000" ACCESS_KEY="minio" SECRET_KEY="minio123" npm run test

to migrate individual file,
move to ts
apply ts changes
npx lint # only current rules apply once we enable all other rules, it would just be formatting

[trim21]

I can help rewrite some files to ts if you need.

(need a tsconfig.json before migration)

[prakashsvmx]

@trim21 thank you so much. I will check if tests can be run without issues when migrating to ts. And request for volunteering.

[trim21]

@trim21 thank you so much. I will check if tests can be run without issues when migrating to ts. And request for volunteering.

I can help imporve workflow to support ts files first, with only migrate errors.js to errors.ts to see if it's working 😀

[prakashsvmx]

Closing this in favour of the merged PR.