fix: add missing import for class generics map (PR #480)

* Fix missing import for class Generics map.
* Add import only when needed (in non-inner class declaration)
* Remove unneeded import

jadx-cli/src/main/java/jadx/cli/JadxCLIArgs.java

@@ -107,7 +107,7 @@ public class JadxCLIArgs {
 		return process(jcw);
 	}
 
-	private boolean process(JCommanderWrapper jcw) {
+	private boolean process(JCommanderWrapper<?> jcw) {
 		if (printHelp) {
 			jcw.printUsage();
 			return false;