Backend: Kinesis Data Streams

[mumoshu]

Hi. Thanks for maintaining this awesome tool 😄

Would you mind if I contributed a Kinesis Data Streams backend to ax?

My use-case is to send structured logs from Kubernetes pods. Logs are captured by Filebeat w/ awsbeats(fork), and then sent to Kinesis Data Streams.
A Kinesis Data Stream fan-out logs to AWS ES and S3 by using Kinesis Firehose.

I believe this "uniform"ity is where ax shines. I'd like to use ax to tail/filter logs from K8S(#7), Data Streams(This issue), AWS ES(Needs request signing like CloudWatch logs on top of Kibana backend, another issue). Managing and using different tools for different sources is not very productive 😉

WDYT?