(C) 1996 AROS - The Amiga Replacement OS
If 'logic' is TAGFILTER_AND, then all the tags that are NOT in the array filterArray will be removed from the tagList.
If 'logic' is TAGFILTER_NOT, then all the tags that ARE in the array filterArray will be removed from the tagList.
Tags are removed by setting their ti_Tag value to TAG_IGNORE.