mysql_innodb_catalog: make owner and viewable_owner columns VARCHAR

We want these columns to be "binary" so that mariadbd compares them
without any collation, but we don't want to use binary type, because on
python 3 the brain attributes are bytes (user ids are strings everywhere
else).

This also normalize the same columns present in worklist cache table.

bt5/erp5_security_uid_innodb_catalog_test/SkinTemplateItem/portal_skins/erp5_security_uid_innodb_catalog_test/Base_zCreateWorklistTable.sql

@@ -2,8 +2,8 @@ DROP TABLE IF EXISTS worklist_cache
 <dtml-var sql_delimiter>
 CREATE TABLE `worklist_cache` (
   `count` INT UNSIGNED NOT NULL,
-  `owner` VARCHAR(32) DEFAULT '',
-  `viewable_owner` VARCHAR(32) NOT NULL DEFAULT '',
+  `owner` VARCHAR(255) binary DEFAULT '',
+  `viewable_owner` VARCHAR(255) binary NOT NULL DEFAULT '',
   `security_uid` INT UNSIGNED NOT NULL,
   `alternate_security_uid` INT UNSIGNED,
   `other_security_uid` INT UNSIGNED,

bt5/erp5_worklist_sql/SkinTemplateItem/portal_skins/erp5_worklist_sql/Base_zCreateWorklistTable.sql

@@ -2,8 +2,8 @@ DROP TABLE IF EXISTS worklist_cache
 <dtml-var sql_delimiter>
 CREATE TABLE `worklist_cache` (
   `count` INT UNSIGNED NOT NULL,
-  `owner` VARCHAR(32) DEFAULT '',
-  `viewable_owner` VARCHAR(32) NOT NULL DEFAULT '',
+  `owner` VARCHAR(255) binary DEFAULT '',
+  `viewable_owner` VARCHAR(255) binary NOT NULL DEFAULT '',
   `security_uid` INT UNSIGNED NOT NULL,
   `portal_type` VARCHAR(255) NOT NULL,
   `validation_state` VARCHAR(255) NULL,

product/ERP5/bootstrap/erp5_mysql_innodb_catalog/CatalogMethodTemplateItem/portal_catalog/erp5_mysql_innodb/z_create_catalog.sql

@@ -5,8 +5,8 @@
 CREATE TABLE `catalog` (
   `uid` BIGINT UNSIGNED NOT NULL,
   `security_uid` INT UNSIGNED,
-  `owner` varbinary(255) NOT NULL default '',
-  `viewable_owner` varbinary(255) NOT NULL default '',
+  `owner` varchar(255) binary NOT NULL default '',
+  `viewable_owner` varchar(255) binary NOT NULL default '',
   `path` varchar(255) NOT NULL default '',
   `relative_url` varchar(255) NOT NULL default '',
   `parent_uid` BIGINT UNSIGNED default '0',