[FEATURE] Build Strategy from Tekton Task/Pipeline

[adambkaplan]

Build strategy authors (ecosystem) will more than likely maintain a Tekton task and/or pipeline as well. Importing a Tekton task or pipeline (ex: from Tekton Hub or a Tekton bundle) as a Build Strategy can reduce duplicated efforts.

Originally posted by @cmoulliard in https://github.com/shipwright-io/build/issues/1280#issuecomment-2051208907