* chore: add test for ensuring pipeline previews work for trace parser processors
* chore: updates to trace parser validation in postable pipelines
* chore: extract auth.randomHex into utils.RandomHex for reuse
* chore: get trace parser preview test passing
* chore: start with JSON serialized trace parser in test to cover deserialization
* chore: address PR feedback
* chore: use v3.Filterset as pipeline filters in logparsing pipelines integration tests
* chore: get logparsing integration tests passing with filterset based pipeline
* chore: get all other breaking tests passing
* chore: move models.logparsingpipeline to logparsingpipeline.model
* chore: implement Valuer and Scanner interfaces for v3.FilterSet