Support for module import

[mlau-anet]

import module java.base; is now out of preview and should be supported by this formatter. Instead it fails with

LINE_UNDEFINED removeUnusedImports(java.lang.IllegalArgumentException) object of type com.sun.tools.javac.tree.JCTree$JCModuleImport is not an instance of com.sun.tools.javac.tree.JCTree$JCImport (...)

and

LINE_UNDEFINED palantir-java-format(com.palantir.javaformat.java.FormatterException) error: Expected ; after import (...)