Add missing messages

Closes gh-211

Author: philwebb

spring-javaformat/spring-javaformat-checkstyle/src/main/resources/io/spring/javaformat/checkstyle/check/messages.properties

@@ -2,6 +2,9 @@ catch.singleLetter=Single letter catch variable (use "ex" instead).
 catch.wideEye=''o_O'' catch variable (use "ex" instead).
 header.unexpected=Unexpected header.
 header.mismatch=Line does not match expected header line of ''{0}''.
+hide.utility.class=Utility classes should not have a public or default constructor.
+import.avoidStatic=Using a static member import should be avoided - {0}.
+import.ordering=Wrong order for ''{0}'' import.
 javadoc.badCase=Javadoc element descriptions should not start with an uppercase letter.
 javadoc.bannedTag=Javadoc tag ''{0}'' should not be used.
 javadoc.missingSince=Missing Javadoc @since tag.