Addition: Set/clear/toggle individual pixels

[steve8x8]

Currently, text output is the major focus of the module.
For simple graphics and effects, it should be possible to set/clear individual pixels (or rectangles), or toggle them.
The latter functionality would require to keep an image of the display in memory, I think.
Having a bit pattern in memory would also provide support for scrolling (issue #3) and what I think "oscillation" (issue #4) means...

[marcelstoer]

I would argue that this is a dup of #1.

[steve8x8]

IMHO it's an extension of #1. Adding a require("bit") seems unavoidable in the long run (and. e.g. reverseBytes would profit from bit operations, saving several K of heap space).

[marcelstoer]

True, you're right.