VbzCart/tables/cat ittyps

About

 * Purpose: catalog item types - every item has one, but they are often all the same
 * Fields:
 * ID_Parent (int): .ID of parent, if any
 * NameSng (string): word for single item of this type (e.g. "shirt","box")
 * NamePlr (string): word for multiple items of this type (e.g. "shirts","boxes")
 * Descr (string): longer name, e.g. "compact disc" instead of "CD". If blank, use NameSng.
 * Q: should this contain plural text? Or will we need DescrSng and DescrPlr?
 * Sort (string): sorting key (optional)
 * isType (flag): if TRUE, this type may be used for actual items; if not, it is a folder (type category)

SQL
DROP TABLE IF EXISTS `cat_ittyps`; CREATE TABLE `cat_ittyps` ( `ID` INT  NOT NULL AUTO_INCREMENT,  `ID_Parent` INT COMMENT '(self).ID of parent type; mainly for organizational purposes',  `NameSng` varchar(63) NOT NULL COMMENT 'word for single item of this type (e.g. "shirt", "box")',  `NamePlr` varchar(63) COMMENT 'word for multiple items of this type (e.g. "shirts", "boxes"); NULL = use singular',  `Descr` varchar(255) COMMENT 'longer name (singular), e.g. "compact disc" instead of "CD". NULL = use singular',  `Sort` varchar(31) COMMENT "optional sorting key",  `isType` BOOL COMMENT 'FALSE = just a folder, so omit it from drop-down lists of types to choose from',  PRIMARY KEY(`ID`) ) ENGINE = MYISAM;