Add grpc keepalive config

Implement ObserveRIB clients metric

Add BMP session status metric

Fix BMP reconnect

Fix race condition in BGP metrics handling.

* Add decoding benchmark

* Add .gitattributes

* Add test data

* Implement decoding speed improvements

* Performance improvements

* Fix tests

* Optimizing values vs ptr.

* Change cache inserts to pointers

* Refactor tests for ip dedup changes

* Fix tests

* Fix types in device protocol tests

* Fix tests

* Fix types in routingtable tests

* Fix kernel package for darwin/win

* Swap BTree with Map

* Drop legacy BMP code

* Drop legacy fib implementation.

* Fix Ptr calls

* Drop unused code

* Drop unused Less functions

* Drop unused copy function

* Drop dead code. Add IP dedup to prefix dedup.

Co-authored-by: Marcus Weiner <marcus.weiner@gmail.com>

Fix/pfxdedup

* Replace ip/prefix map caches with btree caches.

* Cleanup

* Fix magic number

* fixed build

* Add myself to Authors / Contributors.

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

* First shot at list of supported RFCs.

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

* Make the list a .. list.

Signed-off-by: Maximilian Wilhelm <max@sdn.clinic>

* Fix type assertions

* Fix type assertion

* Remove debug output

* init

* Refactoring

* Add caches

* Replace IPs and Prefixes with pointers to these

* Fix nil pointer derefs

* Fix nil pointer deref

* Fix community encoding

* Fix tests

* Fix tests

* Fix tests

* Fix tests

* Fix tests

* Fix tests

* Fix BGP path hashing

* Fix path attr decoding

* Fix tests

* Fix tests

* Fix tests

* Fix tests

* Cleanup

* Cleanup

* Revert config change

* Fix Benchmark. Fix ClusterList PA.

* Fix ClusterList tests

* Add client

* Remove stale test

* Cleanup

* Increase verbosity on decode failure

* Improve chache layer performance

* Improve bgp path cache performance

* Cleanup

* Implementing basic daemon with configuration

* Add daemon

* Implement hot reloadable filters

* Adding more filter actions

* Make filters comparable

* Fix tests

* Fix tests

* Fix tests

* Cleanup

* Cleanup

* Cleanup

* Use documentation prefixes rfc5737

* Correct one prefix

* Fix copy&paste error

Fix alignment issue on arm

* Make BMP server VRF aware

* Implement RIS service

* Remove binary

* Fix .gitignore

* Implement more RPCs

* Implement RIB Observer

* Fix tests

* Implement RIB Dump

* Add support for translating proto BGP Paths into internal paths

* Cleanup

* Fix peer down

* Implement buffered update receiver. Fix route propagation.

* Add metrics

* Add VRF metrics

* Add router label to VRF metrics

* Add peer metrics

* Fix tests

* Fix test

* Fix test

* Fix build

* Add tests

* Add test for unknown path attributes

* Add tests

* Extend test

* Standardize grpc API

* Fix tests

This enables users of the bio-rd library to reuse the state numbering.
Otherwise users have to maintain their own constats to avoid magic
numbers.

* first steps to metrics

* next small step

* fixed tests

* added comments

* postponed RouterAccepted and RoutesRejected to next step

* read update counters

* added test

* added missing test file

* Route not used any more

* added metrics for session state and time since establish

* increased test coverage, time since establish impl.

* added prom collector

* added metrics endpoint to BGP example

* added metrics for VRF

* removed commented metrics

* fixed logging inconsistency in example

* Update main.go

* gofmt

* fixed typo