Tiny import clean up

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/core/base/GeneratorBase.java

@@ -1,15 +1,15 @@
 package com.fasterxml.jackson.core.base;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigDecimal;
+
 import com.fasterxml.jackson.core.*;
 import com.fasterxml.jackson.core.json.DupDetector;
 import com.fasterxml.jackson.core.json.JsonWriteContext;
 import com.fasterxml.jackson.core.json.PackageVersion;
 import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.math.BigDecimal;
-
 /**
  * This base class implements part of API that a JSON generator exposes
  * to applications, adds shared internal methods that sub-classes