Update third party addons with ProfaneDB

I added my project ProfaneDB, it is a database for Protocol Buffers objects. Written in C++, it uses gRPC as an interface for other languages.
It is still work in progress, but I'd love to get some feedback on it while I progress!

docs/third_party.md

diff --git a/docs/third_party.md b/docs/third_party.md
index 4c9ffef..385650d 100644
--- a/docs/third_party.md
+++ b/docs/third_party.md
@@ -156,3 +156,4 @@
 * [Linter for .proto files](https://github.com/ckaznocha/protoc-gen-lint)
 * [Protocol Buffers Dynamic Schema - create protobuf schemas programmatically (Java)] (https://github.com/os72/protobuf-dynamic)
 * [Make protoc plugins in NodeJS](https://github.com/konsumer/node-protoc-plugin)
+* [ProfaneDB - A Protocol Buffers database](https://profanedb.gitlab.io)