[Fixes] Props Duplicate - Path Packing

[cschuchardt88]

Description

Fixed Props Pathing for dotnet pack with nuget

Change Log

• Remove duplicate Paths in ./src/Plugins/Directory.Build.props
• Removes warning for files already added on dotnet pack

Type of change

• Optimization (the change is only an optimization)
• Style (the change is only a code style for better maintenance or standard purpose)
• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Locally

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[shargon]

What's happens if you want to pack only plugins?

[cschuchardt88]

@shargon
Doing the from solution you get (PR fixes this)

Doing it just from *.csproj of plugins (this won't happen rare case)