Move #2486 tests out of "failing"

Author: cowtowncoder

src/test/java/com/fasterxml/jackson/failing/BuilderDeserializationTest2486.java renamed to src/test/java/com/fasterxml/jackson/databind/deser/builder/BuilderDeserializationTest2486.java

@@ -1,4 +1,4 @@
-package com.fasterxml.jackson.failing;
+package com.fasterxml.jackson.databind.deser.builder;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.databind.BaseMapTest;