Update to the final 0.8.0 gir.core release

Author: cameronwhite

Directory.Packages.props

@@ -1,11 +1,10 @@
 <Project>
   <PropertyGroup>
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
-    <GirCoreVersion>0.8.0-preview.1</GirCoreVersion>
+    <GirCoreVersion>0.8.0</GirCoreVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="GirCore.Adw-1" Version="$(GirCoreVersion)" />
-    <PackageVersion Include="GirCore.GObject-2.0.Integration" Version="$(GirCoreVersion)" />
     <PackageVersion Include="GirCore.Gtk-4.0" Version="$(GirCoreVersion)" />
     <PackageVersion Include="GirCore.PangoCairo-1.0" Version="$(GirCoreVersion)" />
     <!-- Note: at least 1.4.2-alpha3 is required for fixes to uninstalling addins, from https://github.com/mono/mono-addins/pull/198 -->

Pinta.Gui.Addins/Pinta.Gui.Addins.csproj

@@ -5,7 +5,6 @@
   </PropertyGroup>
 
   <Import Project="../properties/ReferenceGirCoreAdw1.props" />
-  <Import Project="../properties/ReferenceGirCoreGObject20Integration.props" />
 
   <ItemGroup>
     <PackageReference Include="Mono.Addins" />

Pinta.Gui.Widgets/Pinta.Gui.Widgets.csproj

@@ -3,8 +3,6 @@
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
-  <Import Project="../properties/ReferenceGirCoreGObject20Integration.props" />
-  
   <ItemGroup>
     <ProjectReference Include="..\Pinta.Core\Pinta.Core.csproj" />
   </ItemGroup>

Pinta.sln

@@ -1,4 +1,4 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
+Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.30225.117
 MinimumVisualStudioVersion = 10.0.40219.1
@@ -45,7 +45,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "properties", "properties",
 	ProjectSection(SolutionItems) = preProject
 		properties\ReferenceGirCoreAdw1.props = properties\ReferenceGirCoreAdw1.props
 		properties\ReferenceGirCorePangoCairo10.props = properties\ReferenceGirCorePangoCairo10.props
-		properties\ReferenceGirCoreGObject20Integration.props = properties\ReferenceGirCoreGObject20Integration.props
 		properties\ReferenceGirCoreGtk40.props = properties\ReferenceGirCoreGtk40.props
 	EndProjectSection
 EndProject