Move all the text decoders to a separate file.

AVR Working Controller/AVR.vcxproj

@@ -126,9 +126,11 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="AVR.cpp" />
+    <ClCompile Include="AVRCommandDecoder.cpp" />
     <ClCompile Include="SerialPort\SerialPort.cpp" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="AVRCommandDecoder.h" />
     <ClInclude Include="SerialPort\SerialPort.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />