fix: retire lodash omitby to fix vulnerability

[yukun-han]

Checklist

• npm run dist works locally (this will run tests, lint and build)
• Commit messages are ready to go in the changelog (see below for details)
• PR template filled in (see below for details)

Summary

Mentioned in issue #1169, lodash.omitby will be reported security risk by BlackDuck. This PR retired lodash.omitby dependency and replaced it with ramda to avoid vulnerability.

lodash.omitby is used to filter out null and undefined value from a object. ramda does not provide same name omitBy function but this functionality could be achieved by ramda.reject referring to link.

[mefellows]

Thank for you submitting this, if the build passes I'll bring this in.