Add ignore_device_id config flag to filebeat

[breml]

Additional config flag, which allows to disable the device_id as part of the
unique file identification for situations, where the device ID is not
stable.

Fixes: #13314

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[elasticmachine]

Since this is a community submitted pull request, a Jenkins build has not been kicked off automatically. Can an Elastic organization member please verify the contents of this patch and then kick off a build manually?

[breml]

The implementation in this PR does not change the default behavior of filebeat and can be configured by the user, if necessary.

[kvch]

jenkins test this

[breml]

The problem, that Jenkins is reporting does not make sense to me and I feel like this is not releated to my change but more like a fleaky test.

I extended the the PR in breml@6737c58 to also allow for automated migration from default to ignore_device_id mode.

[kvch]

I have opened an issue to discuss the issue, so we can cover as many use cases as possible: #13492
Do you mind sharing your thoughts in case we missed something? In the meantime, I am closing this PR, if that's ok with you.

[breml]

@kvch I am ok with closing this PR as long as the discussions on #13492 are really progressing and are fruitful. In the past there have been similar issues as well as discussions on discuss, which have been dead ends. I will list them in #13492 for reference.