* Add fingerprint xray_random
xray_random means to pick a random uTLS fingerprint at the core startup
This way, the fingerprint is stable for a user for some days. While there is no identifiable signature for the whole xray community
* Fingerprint "random" refine
Exclude old fingerprint from RNG
* Increase some tls test timeout
* Fix TestUserValidator
* Change all tests to VMessAEAD
Old VMess MD5 tests will be rejected and fail in 2022
* Chore: auto format code
* protocol harmonization with V2Ray/V2Fly by supporting both V2Ray server and XRay server
* protocol harmonization with V2Ray/V2Fly by supporting both V2Ray server and XRay server comment
* Update all proto files with existing vprotogen
* Chore: remove protoc-gen-gofast
* Feat: vprotogen adds version detector to block generation code from old protobuf version
* Feat: vprotogen refine logic
Co-authored-by: Loyalsoldier <10487845+Loyalsoldier@users.noreply.github.com>