Add support for GELF receiver for logging

[BharatKJain]

Component(s)

receiver/udplog

Is your feature request related to a problem? Please describe.

I have added the code for GELF receiver, please follow this #33858.

We're using GELF based logging for all application logs, which have a GELF client in them - refer to go GELF client.

We want to support server-side reception for GELF based logs.

Describe the solution you'd like

Please check the PR

Describe alternatives you've considered

We're already using the tremor's implementation of GELF - link to tremor docs

Additional context

None

[github-actions]

Pinging code owners:

• receiver/udplog: @djaglowski

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[djaglowski]

I see in #33858 you have proposed to implement this as a new receiver but here you state this is related to udplog.

If this would be an enhancement to the udplog receiver, please provide links to documentation of the gelf protocol and articulate how the receiver would be enhanced to support it.

[BharatKJain]

Closing this issue, linking this one:

#33861

This is not directly related to udplog receiver, I have forked some of the code from it but it's a separate receiver.