* chore: experiment with using a tmp file for getting collector logs in simulator
* chore: collector simulator: cleaned up tmp file based collector logs capture
* chore: add test validating regex proc doesn't error for logs that dont match
* chore: return collector error logs from pipeline preview API
* chore: add test validating regex processor doesn't log errors for mismatched logs
* chore: add if condition for generated regex processors
* chore: add test case validating json parser ignore non json logs
* chore: add if condition for operator generated for json parser
* chore: add test case validating move processor ignores logs with missing field
* chore: add if condition for operator generated for move
* chore: add test case validating copy processor ignores logs with missing field
* chore: add if condition for operator generated for copy
* chore: add test case validating remove processor ignores logs with missing field
* chore: add if condition for operator generated for remove
* chore: log pipelines: ensuring json parser ignores log if json field is missing
* chore: log pipelines: ensure regex parser ignores log if field is missing
* 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
