Merge pull request #70 from novalagung/refactor-jwt-go

refactor: use golang-jwt/jwt instead of dgrijalva/jwt-go

Merge pull request #58 from Vonage/increase-patch-version-for-release

Updated utils.go increasing the version of the SDK with a patch increase

Merge pull request #54 from GregHolmes/bump-version-ready-for-release

Bumped version for release

Merge pull request #52 from Vonage/add-verify-psd2

Update Verify and add PSD2 feature

Bump to version 0.12.3

Merge pull request #48 from Vonage/prepare-0.12.2

Bump version for release

Merge pull request #43 from avinashdhinwa/issue-39-ncco

Ncco now implements marshaller interface, no need to call `GetActions` for marshalling Ncco

Move docs out of README and signpost docs folder

Merge pull request #27 from Vonage/refactor-oas

Refactored library with generated structs and improved error handling

Finish Verify API examples and improve error handling