Create Trestle pipelines

[smlambert]

We are trialing a way for JVM developers from WG member companies to do some feature testing on Adoptium infrastructure. We want to segregate these pipelines from the release and evaluation pipelines so that they are easy to differentiate and track.

They will have a prefix on the name (much like we do with release- and evaluation- pipelines) and trigger AQAvit testing with a suffix _trsl (suffixes already supported for AQAvit pipelines, _fips, _criu, etc). In this way, they will also be differentiated and more easily searchable in TRSS.

[smlambert]

Will iteratively add documentation here.