EditType API in JavaScript Grid API control

Defines the Edit Type of the column

• DefaultEdit - Defines EditType as DefaultEdit
• DropdownEdit - Defines EditMode as Dropdownedit
• BooleanEdit - Defines EditMode as Booleanedit
• DatepickerEdit - Defines EditMode as Datepickeredit
• DatetimepickerEdit - Defines EditType as Datetimepickeredit
• NumericEdit - Defines EditMode as Numericedit