Meta handling Options
 -set-meta args:      sets given meta type - syntax: "ABCD[:tk=ID]"
                       * ABCD: four char meta type (NULL or 0 to remove meta)
                       * [:tk=ID]: if not set use root (file) meta
                                if ID is 0 use moov meta
                                if ID is not 0 use track meta
 -add-item args:      adds resource to meta
                       * syntax: file_path + options (':' separated):
                        tk=ID: meta adressing (file, moov, track)
                        name=str: item name
                        mime=mtype: item mime type
                        encoding=enctype: item content-encoding type
                       * file_path "this" or "self": item is the file itself
 -rem-item args:      removes resource from meta - syntax: item_ID[:tk=ID]
 -set-primary args:   sets item as primary for meta - syntax: item_ID[:tk=ID]
 -set-xml args:       sets meta XML data
                       * syntax: xml_file_path[:tk=ID][:binary]
 -rem-xml [tk=ID]:    removes meta XML data
 -dump-xml args:      dumps meta XML to file - syntax file_path[:tk=ID]
 -dump-item args:     dumps item to file - syntax item_ID[:tk=ID][:path=fileName]
 -package:            packages input XML file into an ISO container
                       * all media referenced except hyperlinks are added to file