Support for Amazon Rekognition.

Support for AWS Translate.

Support for Amazon SES V2 API;

Fixed issues with EC2 instance credentials retrieval;
Removed wrong usage of Bcl.inc include file.

Added support for Amazon Polly.

Added support for Amazon Lex and Amazon Lex V2 runtimes APIs.
Fixed some memory leaks.

- Added support for Amazon SNS;

- Support for getting credentials from EC2 instance metadata
- Improved memory usage in region endpoints;
- Fixed memory leaks;