Messaging: Added IConnectionFactory for correctly implementing disposable pattern

[BalassaMarton]

Added IConnectionFactory for correctly implementing disposable pattern

[codecov]

Codecov Report

Merging #239 (fd222c3) into main (34ad3a0) will decrease coverage by 0.05%.
The diff coverage is 80.00%.

@@            Coverage Diff             @@
##             main     #239      +/-   ##
==========================================
- Coverage   72.85%   72.81%   -0.05%     
==========================================
  Files         137      139       +2     
  Lines        4605     4620      +15     
  Branches      138      138              
==========================================
+ Hits         3355     3364       +9     
- Misses       1249     1255       +6     
  Partials        1        1              

Impacted Files	Coverage Δ
...src/Server/Server/WebSocket/WebSocketConnection.cs	73.27% <0.00%> (-0.64%)	⬇️
...ent/Client/WebSocket/WebSocketConnectionFactory.cs	57.14% <57.14%> (ø)
...ng/dotnet/src/Client/Client/MessageRouterClient.cs	62.08% <100.00%> (ø)
...bSocket/MessageRouterBuilderWebSocketExtensions.cs	60.00% <100.00%> (ø)
...t/src/Core/Protocol/Json/MessageBufferConverter.cs	81.81% <100.00%> (+4.04%)	⬆️
...et/src/Host/Client/Internal/InProcessConnection.cs	100.00% <100.00%> (ø)
...Host/Client/Internal/InProcessConnectionFactory.cs	100.00% <100.00%> (ø)
...nternal/MessageRouterBuilderInProcessExtensions.cs	100.00% <100.00%> (ø)
...ng/dotnet/src/Server/Server/MessageRouterServer.cs	87.30% <100.00%> (ø)

... and 1 file with indirect coverage changes