Add MMC/SecureDigital device support. Not yet used because of

a bad implementation of SEND_CSD and SEND_CID commands (TODO).

DiscImageChef.Devices/DiscImageChef.Devices.csproj

@@ -76,6 +76,8 @@
     <Compile Include="FreeBSD\Enums.cs" />
     <Compile Include="FreeBSD\Extern.cs" />
     <Compile Include="FreeBSD\Structs.cs" />
+    <Compile Include="Device\MmcCommands\MMC.cs" />
+    <Compile Include="Device\MmcCommands\SecureDigital.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>
@@ -85,6 +87,7 @@
     <Folder Include="Device\ScsiCommands\" />
     <Folder Include="Device\AtaCommands\" />
     <Folder Include="FreeBSD\" />
+    <Folder Include="Device\MmcCommands\" />
   </ItemGroup>
   <ProjectExtensions>
     <MonoDevelop>
@@ -92,8 +95,8 @@
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