Add methods to request access token synchronous#5

nisrulz merged 1 commit intonisrulz:update/sdk-to-support-jitpacknisrulz/AppAuth-Android:update/sdk-to-support-jitpackfrom

TizioIncognito:SynchronousFreshTokenTizioIncognito/AppAuth-Android:SynchronousFreshTokenCopy head branch name to clipboard