Gambas Value Datatype

`GB_BOOLEAN`	Boolean value.
`GB_DATE`	Date value.
`GB_FLOAT`	Float value.
`GB_INTEGER`	Integer value.
`GB_LONG`	Long value.
`GB_OBJECT`	Object value.
`GB_POINTER`	Pointer value.
`GB_SINGLE`	Single value.
`GB_STRING`	String value.
`GB_VALUE`	Generic value.
`GB_VARIANT`	Variant value.