Fix Issue #390

…iptic format; setup tests to verify functions are actually reciprocals of each other.

fixed the typing on the key store in SigProvider
integrating PR feedback
relocating default init of ec
further optimizing ec object passing around; removing function from its original location, I already moved

Add conversion helpers for to/from elliptic lib

Fix #372: Added license, version, and build passing badges

Fix Issue #450: Removing babel-cli removes need for babel-polyfill

…usage

eosjs content plan 👍

Fixing sign() method

Bumping versions or removing unused dependencies

Resolves differences missed in merging

Updating CI/CD to check for protected branch and use token so workflow re-runs (release/21.0.x branch)

Bumping version to `-rc3`

Bump elliptic - v21

Bump RC version

Updating version to 21.0.2

Merging changes from master branch to release/21.0.x