feat(HUD): Support for MultiplexTransport Port (MirrorNetworking#3662)

* Moved Multiplex to Core

* Updated Available and ToString in Transports
- Available now uses `#if UNITY_WEBGL` because `Application.platform != RuntimePlatform.WebGLPlayer;` doesn't work in Editor
- ToString was shortened and includes port for presentation in HUD

* NetworkManagerHUD: Added support for MultiplexTransport

* Moved Multiplex back to Transports

* Implemented PortTransport in Multiplex

* NetworkManagerHUD: reverted width change

* Revamped Port handler

* Changed LogError to LogWarning in Port setter

* Moved ToString change to separate PR

* Use Utils.IsHeadless

* Use Utils.IsDebug

* Removed console logging

perf(PlayerController): Changed 4 examples to NT-Reliable

- Tanks, Benchmark, CCU, and Pong examples all still use NT-Unreliable

fix(Edgegap Plugin): fix NRE when reloading assets

feature: Edgegap Plugin V2 (MirrorNetworking#3692)

* Edgegap Plugin V2 from https://github.com/dylanh724/edgegap-unity-plugin-v2/tree/feat/plugin-v2.2

* fix things

* fix warnings

* fix u2020 support

* fix nre

* fix logo hardcoded path

* fix clipboard image hardcoded path and remove fonts

* syntax

* fix unity 2019/2020 breaking all editor UIs

* fix NRE on first open due to old window

* fix 2019 asserts

* link to our documentation

* disable warning

* fix unity 2019 unsupported syntax error

* Mirror.Hosting.asmdef: fix missing ref

* fix: remove all fonts to avoid the errors

* readme: two click hosting

* readme

* better

* fix 2019 errors

* fix U2020 async warning

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Co-authored-by: mischa <16416509+vis2k@users.noreply.github.com>

perf: SyncVar hook invocations no longer instantiate a new action del…

…egate on every call (MirrorNetworking#3615)

Co-authored-by: Clayton Hunsinger <clayton@talofagames.com>

feat(NetworkManager): Ability to toggle auto-start in Editor (MirrorN…

…etworking#3694)

* feat(NetworkManager): Ability to toggle auto-start in Editor

* use Application.isEditor

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Co-authored-by: mischa <info@noobtuts.com>

fix(ConnectionQuality): Move Connection Quality to Network Client (Mi…

…rrorNetworking#3693)

* fix(ConnectionQuality): Move Connection Quality to Network Client
- Added zero as disable value
- Added Tooltip and Range to NetworkManager.connectionQualityInterval
- Obsoleted NetworkManager.OnConnectionQualityChanged
- Added temporary event wireups for OnConnectionQualityChanged
- Removed Action and overrides from NetworkManager template

* Removed stray blank line

* Added ConnectionQualityMethod Selection
- Enum added to ConnectionQuality
- Fields added to NetworkManager and NetworkClient
- Switch added to NetworkClient.UpdateConnectionQuality

* Use right params for Pragmatic

* Renamed Fields in NetworkManager

fix: Reset Scenes for 2019+

fix(StinkySteak): Cannot use shortened new() in older Unity

fix(Examples): Updated scenes and lighting