Added dummy implementation of code:is_module_native/1, which always r…

…eturns false.

src/main/java/erjang/m/code/Native.java

@@ -0,0 +1,18 @@
+package erjang.m.code;
+
+import erjang.BIF;
+import erjang.ENative;
+import erjang.EObject;
+import erjang.ERT;
+
+public class Native extends ENative {
+	@BIF
+	public static EObject is_module_native(EObject module) {
+		// TODO determine whether module is native, e.g. by calling
+		// EModuleManager#get_module_info(EAtom) and adding a field native
+		// to EModuleManager.ModuleInfo
+		return ERT.FALSE;
+		//return ERT.TRUE;
+		//return ERT.am_undefined
+	}
+}