Implement TPC

[zpqrtbnk]

This is the big PR. It implemented TPC as per the TDD.

• New TpcOptions and plumbing
• Refactored CloudDiscovery to also discover TPC ports
• New (temporary) codecs for authentication
• New authentication for TPC
• And finally, MemberConnection now handles TPC

Comes with sets of tests.

• Remote tests that actually connect to a Hazelcast cluster with TPC
• Local tests that use our mock servers to ensure that TPC behaves correctly.

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Name	Link
🔨 Latest commit	4e0d204a87ba3f7e1b9479a8331c4cbf9f97ac4d

[codecov-commenter]

Codecov Report

Merging #830 (4e0d204) into master (c529bfc) will increase coverage by 0.21%. The diff coverage is 82.35%.

@@            Coverage Diff             @@
##           master     #830      +/-   ##
==========================================
+ Coverage   84.29%   84.50%   +0.21%     
==========================================
  Files         892      890       -2     
  Lines       21124    21114      -10     
==========================================
+ Hits        17807    17843      +36     
+ Misses       3317     3271      -46     

Impacted Files	Coverage Δ
src/Hazelcast.Net/Messaging/ClientMessage.cs	100.00% <ø> (ø)
...c/Hazelcast.Net/Networking/SocketConnectionBase.cs	91.83% <40.00%> (-7.40%)	:arrow_down:
src/Hazelcast.Net/Models/AuthenticationResult.cs	86.95% <50.00%> (-13.05%)	:arrow_down:
src/Hazelcast.Net/Clustering/Authenticator.cs	72.91% <73.91%> (-8.48%)	:arrow_down:
src/Hazelcast.Net/Clustering/MemberConnection.cs	82.19% <82.85%> (-1.04%)	:arrow_down:
src/Hazelcast.Net/Clustering/ClusterState.cs	90.83% <83.33%> (+1.31%)	:arrow_up:
.../Hazelcast.Net/Clustering/AuthenticationOptions.cs	93.33% <100.00%> (+0.47%)	:arrow_up:
src/Hazelcast.Net/Clustering/ClusterConnections.cs	78.81% <100.00%> (-0.75%)	:arrow_down:
src/Hazelcast.Net/HazelcastClientFactory.cs	83.05% <100.00%> (+0.29%)	:arrow_up:
...Hazelcast.Net/Messaging/ClientMessageConnection.cs	99.25% <100.00%> (+<0.01%)	:arrow_up:
... and 3 more

... and 5 files with indirect coverage changes

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