Move test that was cherry picked from 3.0.x

Author: jeffscottbrown

grails-databinding/src/test/groovy/grails/databinding/BindingFormatSpec.groovy renamed to grails-databinding/src/test/groovy/org/grails/databinding/BindingFormatSpec.groovy

@@ -1,7 +1,7 @@
-package grails.databinding
+package org.grails.databinding
 
-import grails.databinding.errors.BindingError
-import grails.databinding.events.DataBindingListenerAdapter
+import org.grails.databinding.errors.BindingError
+import org.grails.databinding.events.DataBindingListenerAdapter
 import spock.lang.Specification
 
 import java.text.ParseException
@@ -57,4 +57,4 @@ class DateBindingListener extends DataBindingListenerAdapter {
 	void bindingError(BindingError error, errors) {
 		bindingErrors << error
 	}
-}
+}