[java, java-decompiler] type annotations in class files

Step 1: add top-level field/method/parameter annotations to stubs; include them in decompiled text.

testData/results/TypeAnnotations.dec

@@ -0,0 +1,44 @@
+package pkg;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+class TypeAnnotations {
+   @TypeAnnotations.TA("field type")
+   private String f1;
+   @TypeAnnotations.MixA("field and type")
+   private String f2;
+
+   @TypeAnnotations.TA("return type")
+   int m1() {
+      return 42;// 18
+   }
+
+   void m2(@TypeAnnotations.TA("parameter") int var1) {
+   }// 21
+
+   @Target({ElementType.FIELD, ElementType.TYPE_USE})
+   @interface MixA {
+      String value();
+   }
+
+   @Target({ElementType.TYPE_USE})
+   @interface TA {
+      String value();
+   }
+}
+
+class 'pkg/TypeAnnotations' {
+   method 'm1 ()I' {
+      0      13
+      2      13
+   }
+
+   method 'm2 (I)V' {
+      0      17
+   }
+}
+
+Lines mapping:
+18 <-> 14
+21 <-> 18