macos:  Check for kQDGrafVerbInvert via else if
macos:  Simplify one-case switch (kQDGrafVerbFill)
macos:  Add _MoveTo and _Move traps
pen-state.mac:  Test MoveTo() and Move()
macos:  Add _StdLine, _LineTo, and _Line traps
[NEW] lines.mac:  Test LineTo() and Line()
macos:  Add _HidePen and _ShowPen traps
lines.mac:  Test drawing with the pen hidden
Merge branch 'Pen'