Gradle plugin can generate invalid interfaces

[Jolanrensen]

Having a file contain characters like "." or "-" can result in uncompilable code if no name is given.
like:

dataframes { 
  schema {
    data = "/file"
  }
}

By default it will name the interface "the-exact-name-of-the-file" and they don't get surrounded with "`".
In fact, trying to name it manually with "`" characters throws an exception, as that character is "invalid".