Using IoT certificate for credentials

[pavloblindnology]

Currently, there is no option to get session credentials with IoT certificate.
You need to either set environment variables or use ~/.aws/credentials.

I see, though, that aws_common has IotRoleCredentialsProvider
https://github.com/aws-robotics/utils-common/blob/3d9bd8d6592ead23821c9cff61a0c6ad5add52e0/aws_common/include/aws_common/sdk_utils/auth/service_credentials_provider.h#L129
and ServiceCredentialsProviderChain which includes IotRoleCredentialsProvider (none are used anywhere in aws-robotics)
https://github.com/aws-robotics/utils-common/blob/3d9bd8d6592ead23821c9cff61a0c6ad5add52e0/aws_common/include/aws_common/sdk_utils/auth/service_credentials_provider.h#L175
that can be fed to KinesisStreamManager while initializing video producer
https://github.com/aws-robotics/kinesisvideo-common/blob/3fcdab96689e2cb4a213332add48525a5c75f30d/kinesis_manager/include/kinesis_manager/kinesis_stream_manager.h#L253

Also, seems like IoT credentials need to be used when creating KinesisClient, but KinesisClientFacade cannot be used here bcz it doesn't have constructor version with credentials provider as a parameter

kinesisvideo-ros1/kinesis_video_streamer/src/streamer.cpp

Line 74 in c8c0113

auto kinesis_client = std::unique_ptr<KinesisClient>(

The question is is there any reason why this hasn't been implemented
and how can I add the option the easiest way?
Would be grateful for any advise.