Provide individual configuration settings for PMD/CPD excludes

### New feature, improvement proposal

As of now the configuration of the plugin only has one configuration parameter to set the exclude, named ``.

The format of excludes are different for CPD and PMD, so you need two different supression files for both executions during build and for all report sets during report generation.
This results a blown up plugin configuration, because it's the only configuration you can't set in pluginManagement.

```xml

org.apache.maven.plugins
maven-pmd-plugin
3.28.0




true
true
${dev.noSCA}
${dev.scaFailBuild}





org.apache.maven.plugins
maven-pmd-plugin



pmd_check
verify

pmd


${session.executionRootDirectory}/exclude-pmd.properties



cpd_check
verify

cpd


${session.executionRootDirectory}/exclude-cpd.properties







org.apache.maven.plugins
maven-pmd-plugin


pmd

pmd


${session.executionRootDirectory}/exclude-pmd.properties



cpd

cpd


${session.executionRootDirectory}/exclude-cpd.properties




aggregate

false

aggregate-pmd-no-fork


${session.executionRootDirectory}/exclude-pmd.properties



aggregate-cpd

false


aggregate-cpd


${session.executionRootDirectory}/exclude-cpd.properties





```

It would be great to have two properties for the plugin configuration, like
`excludeFilePMD` and `excludeFileCPD`, so it's possible to set those only once in the plugin configuration.