Add ability to narrow down file selector visibility with excludes

[yuri-sergiichuk]

It may be helpful to use filePattern().all() selector for actually all messages, except smth specific, e.g. messages that have test in their Protobuf file name:

modelCompiler {
     generateInterfaces {
          mark filePattern().all().exclude(filePattern.regex(".*test.*")), "my.CustomInterface"
     }
}