Ignore specific paths/fles in `.nupkg` archives

The following file paths/patterns are not interesting in a `.nupkg` archive and can be ignores safely.

``rels/.rels``
``to/[Content_Types].xml``
`to/package/services/metadata*`
``to/.signature.p7s``
``*.png``
``*.runtimeconfig.json``
``*.dll.config``
``*.exe.config``
``*.shasum``

These are mostly nuget ecosystem specific ignorables, with configurations, metadata and checksums.

The following could also be ignored potentitally:
.editorconfig
.props
.targets