deobfuscator: use obfuscated types in annotated obfuscated signatures

Also annotate fields with their obfuscated type

runescape-api/src/main/java/net/runelite/mapping/ObfuscatedSignature.java

@@ -22,7 +22,6 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 package net.runelite.mapping;
 
 import java.lang.annotation.ElementType;
@@ -31,7 +30,7 @@ import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 @Retention(RetentionPolicy.RUNTIME)
-@Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
+@Target({ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD})
 public @interface ObfuscatedSignature
 {
 	String signature();