Move sqlite batteries to osu.Desktop

Fixes e_sqlite.dll not being copied to output on Windows

osu.Desktop/Program.cs

@@ -15,6 +15,9 @@ namespace osu.Desktop
         [STAThread]
         public static int Main(string[] args)
         {
+            // required to initialise native SQLite libraries on some platforms.
+            SQLitePCL.Batteries_V2.Init();
+
             // Back up the cwd before DesktopGameHost changes it
             var cwd = Environment.CurrentDirectory;
 

osu.Desktop/osu.Desktop.csproj

@@ -28,6 +28,7 @@
     <ProjectReference Include="..\osu-resources\osu.Game.Resources\osu.Game.Resources.csproj" />
   </ItemGroup>
   <ItemGroup Label="Package References">
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.0.1" />
     <PackageReference Include="NUnit" Version="3.8.1" />
     <PackageReference Include="squirrel.windows" Version="1.7.8" Condition="'$(TargetFramework)' == 'net461'" />
   </ItemGroup>

osu.Game/Database/OsuDbContext.cs

@@ -29,12 +29,6 @@ namespace osu.Game.Database
 
         private static readonly Lazy<OsuDbLoggerFactory> logger = new Lazy<OsuDbLoggerFactory>(() => new OsuDbLoggerFactory());
 
-        static OsuDbContext()
-        {
-            // required to initialise native SQLite libraries on some platforms.
-            SQLitePCL.Batteries_V2.Init();
-        }
-
         /// <summary>
         /// Create a new in-memory OsuDbContext instance.
         /// </summary>

osu.Game/osu.Game.csproj

@@ -19,7 +19,7 @@
   </ItemGroup>
   <ItemGroup Label="Package References">
     <PackageReference Include="Humanizer" Version="2.2.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite.Core" Version="2.0.1" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
     <PackageReference Include="SharpCompress" Version="0.18.1" />
     <PackageReference Include="System.ComponentModel.Annotations" Version="4.4.0" />