Refactor uart utils to separate submodule

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "uart/flash"]
 	path = uart/flash
 	url = git@git.blackmark.me:avr/flash.git
+[submodule "uart/type"]
+	path = uart/type
+	url = git@git.blackmark.me:avr/type.git

uart/uart.cppproj

@@ -215,6 +215,9 @@
     <Compile Include="main.cpp">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="type\type.hpp">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="uart\config.hpp">
       <SubType>compile</SubType>
     </Compile>
@@ -233,13 +236,11 @@
     <Compile Include="uart\uart.hpp">
       <SubType>compile</SubType>
     </Compile>
-    <Compile Include="uart\utils.hpp">
-      <SubType>compile</SubType>
-    </Compile>
   </ItemGroup>
   <ItemGroup>
     <Folder Include="io" />
     <Folder Include="flash" />
+    <Folder Include="type" />
     <Folder Include="uart" />
   </ItemGroup>
   <Import Project="$(AVRSTUDIO_EXE_PATH)\\Vs\\Compiler.targets" />