This PR implements the status/result logger functions necessary interface with a Kafka REST Proxy service.
Specifically, this is compatible with the [Confluent KAFKA Rest Proxy Service ](https://docs.confluent.io/1.0/kafka-rest/docs/intro.html).
Add a relatively minimal set of linters that raise safe and
mostly un-opinionated issues with the code. It runs
automatically on CI via a github action.
* Add safe mkdirall and open
* Use secure as much as possible and merge gomodules for orbit to fleet
* Improve openfile and mkdirall to check for permissiveness instead of equality
* Don't shift
* Fix links
* Address review comments
1. use [staticcheck](https://staticcheck.io/) to check the code, and fix some issues.
2. use `go fmt` to format the code.
3. use `go mod tidy` clean the go mod.
Add a config setting to allow copying message fields and decorations into Google Pub/Sub attributes, making it possible to use these values for subscription filters.
Adds Google Cloud PubSub logging for status and results.
This also changes the Write interface for logging modules to add a context.Context (only used by pubsub currently).
Fixes a regression introduced in 2.1.0 in which separate log lines are
no longer output separated by a newline. Now log lines in both output
plugins will do so.
- Refactor configuration for logging to use separate plugins
- Move existing filesystem logging to filesystem plugin
- Create new AWS firehose plugin
- Update documentation around logging
