Added support for providing a custom login URI to get access tokens from via the system property azure.login.uri#40172

vcolin7 merged 3 commits intomainAzure/azure-sdk-for-java:mainfrom

feature/keyvault/custom-login-uri-jcaAzure/azure-sdk-for-java:feature/keyvault/custom-login-uri-jcaCopy head branch name to clipboard