feat: Added array serialization support

Fixes: Unity-Technologies#237

fix: Removed UnityEngine from NuGet package

fix: Moved NuGet targets from ref to lib

fix: Moved NuGet targets from ref to lib

feat: Added NuSpec file and NuGet badge

Merge pull request Unity-Technologies#233 from andgeno/docs

Improved Docs

fix: Fixed channelId reporting for RuflfesTransport

feat: Cleaned up unused MLAPI transport channel types

BREAKING CHANGE: Removed previously unused ChannelTypes

fix(scene): Fixed not being able to switch scene to currently loaded …

…scene (Unity-Technologies#229)

fix: NetworkStart not called for respawned objects. (Unity-Technologi…

…es#227)