no more rebar2

Merge pull request #748 from KingBrewer/sm-update

Extension of AWS Secrets Manager module

more athena apis

Athena and other changes

EC2 adds

minor fixes in DDB

S3 mfa_delete added

 Add functions to read server certificates stored in IAM

Support AWS cognito (#727)

* Support AWS cognito

* Filter only optional fields

* Add map guard to map filtering funs

* Add version to the request headers

* Rename erlcloud_congito -> erlcloud_cognito_user_pools

* Fix specifications

* Fix eunit tests for cognito user pools

* Add cognito user pools to aws config funs

Co-authored-by: arpad.budai <arpad.budai@actual-experience.com>

Merge pull request #725 from key-master/patch-1

use dot in S3 host name