add example sqlite fragment

Author: sam-mfb

Dockerfile

@@ -82,6 +82,7 @@ RUN export DOTNET_ROOT=$HOME/dotnet
 # </ItemGroup>
 # This ensure that the extension lib called by dotnet matches the interop lib compiled here
 COPY ./sqlite-netFx-source-1.0.116.0.zip sqlite-netFx-source-1.0.116.0.zip
+COPY ./sqlite-csproj.fragment sqlite-csproj.fragment
 RUN unzip ./sqlite-netFx-source-1.0.116.0.zip -d sqlite-source
 RUN bash ./sqlite-source/Setup/compile-interop-assembly-release.sh
 WORKDIR /home/devuser/sqlite-source/System.Data.SQLite

sqlite-csproj.fragment

@@ -0,0 +1,8 @@
+To use a manually compiled SQLite file, you will have to modify the csproj that uses System.Data.SQLite.Core 
+to remove that ProjectReference and instead add this to the root of the csproj file:
+
+<ItemGroup>
+  <Reference Include="..\..\sqlite-source\bin\NetStandard21\ReleaseNetStandard21\bin\netstandard2.1\System.Data.SQLite.dll" />
+</ItemGroup>
+
+This ensure that the extension lib called by dotnet matches the interop lib compiled here