Phase 0.1: Resource extraction pipeline

- Add OrderedDictionary JSON converter for round-trip support
- Add ObjLoadRaw() for GDI+-free binary resource loading
- Simplify Ser.cs JSON methods (consistent settings, JsonConvert API)
- Create SlaveMatrix.Extract CLI tool for resource extraction
- Manual export walks Obj/Difs/Dif/Pars/Par hierarchy
- Exports all 13 Obj resources to structured JSON with shape data
- Update .gitignore for build artifacts and extraction output

SlaveMatrix.Extract/SlaveMatrix.Extract.csproj

@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
+    <EnableUnsafeBinaryFormatterSerialization>true</EnableUnsafeBinaryFormatterSerialization>
+    <GenerateResourceUsePreserializedResources>true</GenerateResourceUsePreserializedResources>
+    <GenerateResourceWarnOnBinaryFormatterUse>false</GenerateResourceWarnOnBinaryFormatterUse>
+    <NoWarn>SYSLIB0011;CA1416</NoWarn>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\SlaveMatrix\SlaveMatrix.csproj" />
+  </ItemGroup>
+
+</Project>