GUI tasks

AgsAddBulkMember — add line_member object to line
AgsAddLineMember — add line_member object to line
AgsAddSequencerEditorJack — add line_member object to line
AgsAddSoundcardEditorJack — add line_member object to line
AgsBlinkCellPatternCursor — toggle led object
AgsChangeIndicator — change indicator object
AgsChangeTact
AgsDisplayTact — display tact object
AgsRemoveSequencerEditorJack — remove line_member object to line
AgsRemoveSoundcardEditorJack — remove line_member object to line
AgsResizeEditor — Resize audio channels or pads.
AgsScrollOnPlay — scrolls the editor
AgsConfig — task to read simple file format
AgsConfig — task to write simple file format
AgsToggleLed — toggle led object
AgsUpdateBulkMember — add line_member object to line