Commit Message: contrib: add Hyperscan regex engine
Additional Description: Hyperscan has been introduced as an input matcher earlier this year. Since the regex engine interface has been completed, the patch extent the usage of Hyperscan into a contrib regex engine.
Risk Level: Low
Testing: Unit
Docs Changes: API
Release Notes: N/A
Platform Specific Features: Requires processor with SSSE3 support (nearly any modern x86 processor)
Signed-off-by: Xie Zhihao <zhihao.xie@intel.com>
Mirrored from https://github.com/envoyproxy/envoy @ 725d0b4b3e6fb84aa7dfd1ca4d5792f2dc4558b2
data-plane-api(Azure Pipelines)