Disable RTTI for ffms2, hunspell, and universalchardet

They don't actually use it so it's just pointless bloat.

build/ffms2/ffms2.vcxproj

@@ -37,6 +37,7 @@
         %(PreprocessorDefinitions)
       </PreprocessorDefinitions>
       <DisableSpecificWarnings>4250;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
     </ClCompile>
     <Link>
       <AdditionalLibraryDirectories>$(AegisubLibraryDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>

build/hunspell/hunspell.vcxproj

@@ -17,6 +17,7 @@
     <ClCompile>
       <PreprocessorDefinitions>HUNSPELL_STATIC;_CRT_SECURE_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SrcDir)win_api;$(SrcDir)hunspell;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
     </ClCompile>
   </ItemDefinitionGroup>
   <!-- Source files -->

build/scintilla/scintilla.vcxproj

@@ -19,6 +19,7 @@
     <ClCompile>
       <AdditionalIncludeDirectories>$(SrcDir)\include\;$(SrcDir)\lexlib\;$(SrcDir)\src\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;__WX__;PreprocessorDefinitions)</PreprocessorDefinitions>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
     </ClCompile>
   </ItemDefinitionGroup>
 

build/universalchardet/universalchardet.vcxproj

@@ -4,14 +4,23 @@
     <ProjectGuid>{7B56955D-5162-4698-AA5B-47484EDC8783}</ProjectGuid>
     <RootNamespace>universalchardet</RootNamespace>
   </PropertyGroup>
+
   <!-- Aegisub project configuration -->
   <PropertyGroup Label="AegisubConfiguration">
     <AegisubProjectType>lib</AegisubProjectType>
     <SrcDir>..\..\vendor\universalchardet\</SrcDir>
   </PropertyGroup>
+
   <ImportGroup Label="PropertySheets">
     <Import Project="$(MSBuildThisFileDirectory)..\aegisub.props" />
   </ImportGroup>
+
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <RuntimeTypeInfo>false</RuntimeTypeInfo>
+    </ClCompile>
+  </ItemDefinitionGroup>
+
   <!-- Source files -->
   <ItemGroup>
     <None Include="$(SrcDir)Big5Freq.tab" />