Merge pull request #3904 from acyyu2016/3.0

增加oracle的两边like支持

mybatis-plus-annotation/src/main/java/com/baomidou/mybatisplus/annotation/SqlCondition.java

@@ -34,6 +34,11 @@ public class SqlCondition {
      * % 两边 %
      */
     public static final String LIKE = "%s LIKE CONCAT('%%',#{%s},'%%')";
+
+    /**
+     * % 两边 % [oracle使用]
+     */
+    public static final String ORACLE_LIKE = "%s LIKE CONCAT(CONCAT('%%',#{%s}),'%%')";
     /**
      * % 左
      */