set EnableWindowsTargeting to allow build on linux

Author: Morilli

src/BizHawk.Bizware.Graphics.Controls/BizHawk.Bizware.Graphics.Controls.csproj

@@ -7,6 +7,7 @@
 		<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 		<Nullable>disable</Nullable>
 		<UseWindowsForms>true</UseWindowsForms>
+		<EnableWindowsTargeting>true</EnableWindowsTargeting>
 	</PropertyGroup>
 	<ItemGroup>
 		<ProjectReference Include="$(ProjectDir)../BizHawk.Bizware.Graphics/BizHawk.Bizware.Graphics.csproj" />

src/BizHawk.Client.DiscoHawk/BizHawk.Client.DiscoHawk.csproj

@@ -7,6 +7,7 @@
 		<ApplicationIcon>discohawk.ico</ApplicationIcon>
 		<Nullable>disable</Nullable>
 		<UseWindowsForms>true</UseWindowsForms>
+		<EnableWindowsTargeting>true</EnableWindowsTargeting>
 	</PropertyGroup>
 	<ItemGroup>
 		<ProjectReference Include="$(ProjectDir)../BizHawk.Emulation.DiscSystem/BizHawk.Emulation.DiscSystem.csproj" />

src/BizHawk.Client.EmuHawk/BizHawk.Client.EmuHawk.csproj

@@ -10,6 +10,7 @@
 		<Nullable>disable</Nullable>
 		<ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>None</ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>
 		<UseWindowsForms>true</UseWindowsForms>
+		<EnableWindowsTargeting>true</EnableWindowsTargeting>
 	</PropertyGroup>
 	<ItemGroup>
 		<PackageReference Include="System.Net.Http" />

src/BizHawk.WinForms.Controls/BizHawk.WinForms.Controls.csproj

@@ -5,6 +5,7 @@
 	<Import Project="../MainSlnCommon.props" />
 	<PropertyGroup>
 		<UseWindowsForms>true</UseWindowsForms>
+		<EnableWindowsTargeting>true</EnableWindowsTargeting>
 	</PropertyGroup>
 	<ItemGroup>
 		<ProjectReference Include="$(ProjectDir)../BizHawk.Common/BizHawk.Common.csproj" />