output: Add linktype name

[jlucovsky]

Continuation of #11670

Issue: 6954

This commit adds the linktype name to the output stream. The name is determined from a Rust linktype-to-name function.

Link to ticket: https://redmine.openinfosecfoundation.org/issues/6954

Describe changes:

• Include the linktype name alongside linktype
• Update the schema with linktype_name

Updates:

• Custom linktype to name function in Rust.

Provide values to any of the below to override the defaults.

SV_BRANCH=https://github.com/OISF/suricata-verify/pull/2023