Change BasicUnicode to be templated on character types

And rename it from BasicStringUnicode to BasicUnicode.

Author: trflynn89

build/win/libfly/libfly.vcxproj

@@ -236,7 +236,7 @@
     <ClInclude Include="..\..\..\fly\types\string\detail\format_string.hpp" />
     <ClInclude Include="..\..\..\fly\types\string\detail\stream_util.hpp" />
     <ClInclude Include="..\..\..\fly\types\string\detail\string_traits.hpp" />
-    <ClInclude Include="..\..\..\fly\types\string\detail\string_unicode.hpp" />
+    <ClInclude Include="..\..\..\fly\types\string\detail\unicode.hpp" />
     <ClInclude Include="..\..\..\fly\types\string\lexer.hpp" />
     <ClInclude Include="..\..\..\fly\types\string\literals.hpp" />
     <ClInclude Include="..\..\..\fly\types\string\string.hpp" />

build/win/libfly/libfly.vcxproj.filters

@@ -313,7 +313,7 @@
     <ClInclude Include="..\..\..\fly\types\string\detail\string_traits.hpp">
       <Filter>types\string\detail</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\fly\types\string\detail\string_unicode.hpp">
+    <ClInclude Include="..\..\..\fly\types\string\detail\unicode.hpp">
       <Filter>types\string\detail</Filter>
     </ClInclude>
   </ItemGroup>

build/win/libfly_unit_tests/libfly_unit_tests.vcxproj

@@ -263,7 +263,7 @@
     <ClCompile Include="..\..\..\test\types\string\string.cpp" />
     <ClCompile Include="..\..\..\test\types\string\string_format.cpp" />
     <ClCompile Include="..\..\..\test\types\string\string_traits.cpp" />
-    <ClCompile Include="..\..\..\test\types\string\string_unicode.cpp" />
+    <ClCompile Include="..\..\..\test\types\string\unicode.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\test\config\test_config.hpp" />

build/win/libfly_unit_tests/libfly_unit_tests.vcxproj.filters

@@ -182,7 +182,7 @@
     <ClCompile Include="..\..\..\test\types\string\string_traits.cpp">
       <Filter>types\string</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\test\types\string\string_unicode.cpp">
+    <ClCompile Include="..\..\..\test\types\string\unicode.cpp">
       <Filter>types\string</Filter>
     </ClCompile>
   </ItemGroup>