reshadow/postcss: up settings

[valjusha]

Hi cool team.
Please add the setting for reshadow/postcss: exclude & include. To ignore some paths.
Example:

'reshadow/postcss': {
            postcss: boolean;
            exclude: string[];
            include: string[]
},

Thanks for reshadow.

[antonk52]

Hi and thank you for the issue!

This should be pretty easy to implement. An alternative implementation can be done by introducing a single field patterns: string[]. Either way the resolution of this issue would automatically deprecate the root option that is currently used to specify a directory from which all css files will get processed by the postcss reshadow plugin.