Added file that previously wasn't being copied to the Unity package

RiptideNetworking/RiptideNetworking/RiptideNetworking.csproj

@@ -32,10 +32,6 @@
     <UPMSourceFiles Include="$(ProjectDir)\**\*.cs" Exclude="$(ProjectDir)\obj\**\*.*" />
   </ItemGroup>
 
-  <ItemGroup>
-    <UPMSourceFiles Remove="Transports\ICommon.cs" />
-  </ItemGroup>
-
   <Target Name="PostBuild" AfterTargets="PostBuildEvent">
     <MSBuild Condition="'$(IncludeTransport)' == 'yes'" Projects="$(MSBuildProjectFile)" Properties="IncludeTransport=no" />
     <Exec Condition="'$(IncludeTransport)' == 'yes'" Command="if $(ConfigurationName) == Release xcopy $(ProjectDir)$(OutDir)$(TargetName).dll $(SolutionDir)..\Demos\Unity\Server\Assets\Scripts\Multiplayer\$(TargetName).dll /y&#xD;&#xA;if $(ConfigurationName) == Release xcopy $(ProjectDir)$(OutDir)$(TargetName).xml $(SolutionDir)..\Demos\Unity\Server\Assets\Scripts\Multiplayer\$(TargetName).xml /y&#xD;&#xA;&#xD;&#xA;if $(ConfigurationName) == Release xcopy $(ProjectDir)$(OutDir)$(TargetName).dll $(SolutionDir)..\Demos\Unity\Client\Assets\Scripts\Multiplayer\$(TargetName).dll /y&#xD;&#xA;if $(ConfigurationName) == Release xcopy $(ProjectDir)$(OutDir)$(TargetName).xml $(SolutionDir)..\Demos\Unity\Client\Assets\Scripts\Multiplayer\$(TargetName).xml /y" />

UnityPackage/Runtime/Transports/ICommon.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace RiptideNetworking.Transports
+{
+    /// <summary>Defines methods, properties, and events which every transport's server and client must implement.</summary>
+    public interface ICommon
+    {
+        /// <summary>Whether or not to output informational log messages. Error-related log messages ignore this setting.</summary>
+        bool ShouldOutputInfoLogs { get; set; }
+
+        /// <summary>Initiates handling of currently queued messages.</summary>
+        /// <remarks>This should generally be called from within a regularly executed update loop (like FixedUpdate in Unity). Messages will continue to be received in between calls, but won't be handled fully until this method is executed.</remarks>
+        void Tick();
+    }
+}