Nuget - Update targets to use <ContentWithTargetPath/>

[GiantappMan]

replace None with ContentWithTargetPath

Fixes #2456

Summary: [summary of the change and which issue is fixed here]

• modify “None” to "ContentWithTargetPath" in nuget floder

Changes:

• modify CefSharp.Common.targets
• modify CefSharp.WinForms.targets
• modify CefSharp.Wpf.targets
• add winform/wpf .targets file to nuget folder

How Has This Been Tested?

Screenshots (if appropriate):

before change:

after change:

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Updated documentation

Checklist:

• Tested the code(if applicable)
• Commented my code
• Changed the documentation(if applicable)
• New files have a license disclaimer
• The formatting is consistent with the project (project supports .editorconfig)

[AppVeyorBot]

✅ Build CefSharp 76.1.90-CI3300 completed (commit d13ea928f8 by @DaZiYuan)

[amaitland]

Please provide a reference that details <ContentWithTargetPath/>.

We still support VS2013/2015/2017, so any change needs to be backwards compatible.

The <None/> entries copy the files one level deep when referenced as a sub project (you can reference CefSharp in a dll and the relevant folders will be copied to your executable long as it's a direct reference). Please evaluate if this change in a breaking one in this context.

[GiantappMan]

vs2015 looks fine ,I don't have vs2013/17. I will be grateful if somebody can help this .

[amaitland]

Without a clear understanding of ContentWithTargetPath, what versions it supports, does it include the resource in a ClickOnce installer like changing to <Content/> would I cannot proceed with this. Appreciate the effort though 👍

For me the safest option would be changing to <Content/> as outlined in #2456 (comment)

[amaitland]

A new set of packages that better supports PackageReferene will be created see #2795 for details.