begin splitting scratch-link into scratch-link-{common,mac}

Note that this currently doesn't build since the files have not yet been
adapted to the new framework.

scratch-link-common/scratch-link-common.projitems

@@ -9,5 +9,23 @@
     <Import_RootNamespace>ScratchLink</Import_RootNamespace>
   </PropertyGroup>
   <ItemGroup>
+    <Compile Include="$(MSBuildThisFileDirectory)BLE\IBLEEndpoint.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)BLE\BLESession.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)BLE\GattHelpers.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Extensions\ContainerExtensions.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Extensions\WebSocketExtensions.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Extensions\JsonExtensions.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\JsonRpc2Request.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\JsonRpc2Message.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\JsonRpc2Response.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\JsonRpc2Exception.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\JsonRpc2Error.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\Converters\JsonRpc2MessageConverter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)JsonRpc\Converters\JsonRpc2ValueConverter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)EncodingHelpers.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)EventAwaiter.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)Session.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)SessionManager.cs" />
+    <Compile Include="$(MSBuildThisFileDirectory)WebSocketListener.cs" />
   </ItemGroup>
 </Project>

scratch-link-mac/scratch-link-mac.csproj

@@ -83,6 +83,11 @@
     <Compile Include="ViewController.designer.cs">
       <DependentUpon>ViewController.cs</DependentUpon>
     </Compile>
+    <Compile Include="BLE\MacGattHelpers.cs" />
+    <Compile Include="BLE\MacBLESession.cs" />
+    <Compile Include="BLE\MacBLEEndpoint.cs" />
+    <Compile Include="Extensions\NSExtensions.cs" />
+    <Compile Include="MacSessionManager.cs" />
   </ItemGroup>
   <ItemGroup>
     <InterfaceDefinition Include="Main.storyboard" />