Add reset_visibility param to aws_sqs input

[ekeric13]

Closes: #910

Add an additional parameter of reset_visibility to the aws_sqs input.

Determines whether to set the visibility of the timeout of a nack-ed message to 0, or to leave it unchanged. Just the way delete_message determines whether to delete an ack-ed message, or leave it unchanged.

reset_visibility defaults to true, retaining backwards compatibility.

[ekeric13]

Unit tests seemed to pass.
Ran make install to create the binary and then make test to test it against the example configs

Some of the integration tests failed though.

Docs mentioned the integration tests might fail though. Are there other dependencies I need to install locally?

It doesn't seem there are any tests around aws_sqs input so definitely surprised to get some failures.

[Jeffail]

Thanks @ekeric13, looks great. Don't worry about the integration tests, running them all at the same time on most machines times out. It's an item on my TODO list to improve the contributor docs for integration testing.

[ekeric13]

Awesome! Pretty easy process adding a new PR.
What is the release cadence? Definitely excited to try it out when it's available.

[Jeffail]

It's likely to be the end of this week (or weekend)