Make TCP use new transport layers

[joeygrover]

This PR is ready for review.

Risk

This PR makes minor API changes.

Testing Plan

• Connect with Manticore and observe code path through SdlSession2 logic.
• Test multiple transports to ensure TCP transport modifications work in router service

Summary

• Added a new TCPTransportManager
• SdlProtocol can now be created with multiplexing or TCP transport config and will use the correct transport manager.
• Modified TCPTransport to actually use a different thread to write on

Changelog

Enhancements

• TCP now follows the newer stack

CLA

• I have signed the CLA

[codecov-io]

Codecov Report

Merging #1108 into develop will decrease coverage by 1.23%.
The diff coverage is 2.97%.

@@             Coverage Diff              @@
##             develop   #1108      +/-   ##
============================================
- Coverage      46.73%   45.5%   -1.24%     
- Complexity      4005    4693     +688     
============================================
  Files            453     470      +17     
  Lines          22141   27304    +5163     
  Branches        2513    3686    +1173     
============================================
+ Hits           10348   12424    +2076     
- Misses         11184   14119    +2935     
- Partials         609     761     +152

Impacted Files	Coverage Δ	Complexity Δ
...smartdevicelink/transport/TCPTransportManager.java	0% <0%> (ø)	0 <0> (?)
...com/smartdevicelink/SdlConnection/SdlSession2.java	20.9% <0%> (-1%)	9 <2> (-1)
...artdevicelink/transport/utl/WiFiSocketFactory.java	82.5% <0%> (-6.69%)	11 <9> (ø)
...artdevicelink/transport/MultiplexTcpTransport.java	0% <0%> (ø)	0 <0> (ø)	⬇️
...n/java/com/smartdevicelink/proxy/SdlProxyBase.java	9.25% <33.33%> (+0.83%)	41 <0> (+14)	⬆️
...smartdevicelink/proxy/rpc/OnDriverDistraction.java	76% <0%> (-24%)	9% <0%> (+4%)
...com/smartdevicelink/proxy/rpc/ImageResolution.java	75% <0%> (-11.67%)	12% <0%> (+5%)
...ava/com/smartdevicelink/proxy/SdlProxyBuilder.java	43% <0%> (-6.37%)	1% <0%> (ø)
...reen/choiceset/CheckChoiceVROptionalOperation.java	22.98% <0%> (-3.25%)	9% <0%> (+3%)
.../managers/screen/menu/BaseVoiceCommandManager.java	53.1% <0%> (-3.2%)	19% <0%> (+3%)
... and 68 more

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[BrettyWhite]

this line is in here twice

[BrettyWhite]

this can be local

[BrettyWhite]

(unless we re-use it in resetSession() in which case it could be private

[joeygrover]

@BrettyWhite Updates made based on comments, ready for review