.NET 9 Upgrade

- Pull sln & other config files to the repo root.
- Move tests to ~/test/...
- Move source to ~/src/...
- Update paths in the GitHub workflow file
- Update projects to .NET 9
- Drop FsUnit in favour of Unquote

.github/workflows/main.yml

@@ -15,17 +15,17 @@ jobs:
     - name: Setup
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: 9.0.x
     - name: Restore
-      run: dotnet restore src
+      run: dotnet restore
     - name: Build
-      run: dotnet build src --no-restore --configuration Release
+      run: dotnet build --no-restore --configuration Release
     - name: Test
-      run: dotnet test src --no-build --configuration Release --verbosity normal
+      run: dotnet test --no-build --configuration Release --verbosity normal
     - name: Publish
-      run: dotnet publish src/Analog --configuration Release -p:PublishSingleFile=true --self-contained
+      run: dotnet publish src --configuration Release -p:PublishSingleFile=true --self-contained
     - name: Zip
-      run: zip /home/runner/work/analog/analog-linux-x64 /home/runner/work/analog/analog/src/Analog/bin/Release/net8.0/linux-x64/publish/*
+      run: zip /home/runner/work/analog/analog-linux-x64 /home/runner/work/analog/analog/src/bin/Release/net8.0/linux-x64/publish/*
     - name: Upload
       uses: actions/upload-artifact@v4
       with:
@@ -39,18 +39,18 @@ jobs:
     - name: Setup
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: 9.0.x
     - name: Restore
       run: dotnet restore src
     - name: Build
-      run: dotnet build src --no-restore --configuration Release 
+      run: dotnet build --no-restore --configuration Release 
     - name: Test
-      run: dotnet test src --no-build --configuration Release --verbosity normal
+      run: dotnet test --no-build --configuration Release --verbosity normal
     - name: Publish
-      run: dotnet publish src/Analog --configuration Release -p:PublishSingleFile=true --self-contained
+      run: dotnet publish src --configuration Release -p:PublishSingleFile=true --self-contained
     - name: Zip
       shell: pwsh
-      run: Compress-Archive -Path D:\a\analog\analog\src\Analog\bin\Release\net8.0\win-x64\publish\* -DestinationPath D:\a\analog\analog-win-x64.zip
+      run: Compress-Archive -Path D:\a\analog\analog\src\bin\Release\net8.0\win-x64\publish\* -DestinationPath D:\a\analog\analog-win-x64.zip
     - name: Upload
       uses: actions/upload-artifact@v4
       with:
@@ -64,17 +64,17 @@ jobs:
     - name: Setup
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.0.x
+        dotnet-version: 9.0.x
     - name: Restore
       run: dotnet restore src
     - name: Build
-      run: dotnet build src --no-restore --configuration Release 
+      run: dotnet build --no-restore --configuration Release 
     - name: Test
-      run: dotnet test src --no-build --configuration Release --verbosity normal
+      run: dotnet test --no-build --configuration Release --verbosity normal
     - name: Publish
-      run: dotnet publish src/Analog --configuration Release -p:PublishSingleFile=true --self-contained
+      run: dotnet publish src --configuration Release -p:PublishSingleFile=true --self-contained
     - name: Zip
-      run: zip /Users/runner/work/analog/analog-osx-arm64 /Users/runner/work/analog/analog/src/Analog/bin/Release/net8.0/osx-arm64/publish/*
+      run: zip /Users/runner/work/analog/analog-osx-arm64 /Users/runner/work/analog/analog/src/bin/Release/net8.0/osx-arm64/publish/*
     - name: Upload
       uses: actions/upload-artifact@v4
       with: