BundleResource not working correctly MacOS

[hamarb123]

Expected Behavior

Compiles without any issues and places libEGL.dylib in bin\Debug\netcoreapp3.1\TestEtoProgram.Mac.app\Contents\Resources

Actual Behavior

Error while building

Error | MSB3021 | Unable to copy file "C:\Users\Hamish\Downloads\libEGL.dylib" to "bin\Debug\netcoreapp3.1\TestEtoProgram.Mac.app\Contents\Resources\C:\Users\Hamish\Downloads\libEGL.dylib". The given path's format is not supported. | TestEtoProgram.Mac | C:\Users\Hamish\.nuget\packages\eto.platform.mac64\2.5.6\build\Eto.Platform.Mac64.targets | 232 |  

Steps to Reproduce the Problem / Code that Demonstrates the Problem

1. Create an eto project with standard Mac64 target with .net core
2. Add the following to the project file (with the absolute path to a file that exists)

	<ItemGroup>
		<BundleResource Include="C:\Users\Hamish\Downloads\libEGL.dylib">
			<Link>libEGL.dylib</Link>
		</BundleResource>
	</ItemGroup>

3. Attempt to build

Specifications

• Version: 2.5.6
• Platform(s): Mac, .NET Core 3.1
• Operating System(s): (built on) Windows 10

This behaviour deviates to what a Visual Studio for Mac cocoa app does, which copies to program.app/Contents/Resources/linkpath if linkpath is specified.
I do believe that the error is somewhere near this line

[hamarb123]

I got this to work (in this file)

    <!-- copy resource files -->
    <ItemGroup>
      <ResourceFiles Include="@(BundleResource)" Condition="'%(BundleResource.Link)' != ''" Link="@(BundleResource -> '%(Link)')" />
      <ResourceFiles Include="@(BundleResource)" Condition="'%(BundleResource.Link)' == ''" />
      <ResourceFiles Include="@(Content)" Condition="'%(Content.Link)' != ''" Link="@(Content -> '%(Link)')" />
      <ResourceFiles Include="@(Content)" Condition="'%(Content.Link)' == ''" />
    </ItemGroup>
    <Copy SourceFiles="@(ResourceFiles)" DestinationFolder="$(OutputResourcesPath)%(Link.RelativeDir)" SkipUnchangedFiles="true" Condition="'%(ResourceFiles.Link)' != ''" />
    <Copy SourceFiles="@(ResourceFiles)" DestinationFolder="$(OutputResourcesPath)%(ResourceFiles.RelativeDir)" SkipUnchangedFiles="true" Condition="'%(ResourceFiles.Link)' == ''" />

It also happened for content on the cocoa project, so I've added that as well (I've only tested it with the BundleResource bit modified, not the Content bit).

[hamarb123]

I've created a fix for this, with the permission of an owner, I'll open a PR.