Add endpointProvider in ClientConfig and RequestOverrideConfig. Also add crossRegionBucketAccess in S3Configuration#3978

joviegas merged 3 commits intocross_region_bucket_access/project_branchaws/aws-sdk-java-v2:cross_region_bucket_access/project_branchfrom

joviegas/cross_region_bucket_access/addConfigsaws/aws-sdk-java-v2:joviegas/cross_region_bucket_access/addConfigsCopy head branch name to clipboard