Luma.oled

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| | * Support for 4-bit greyscale OLED (SSD1325) | |
| | * Landscape/portrait orientation with rotate=N parameter | |
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| | * Add terminal functionality | |
| | * Canvas image dithering | |
| | * Additional & improved examples | |
| | * Load config settings from file (for examples) | |
| | * Universal wheel distribution | |
| | * Improved/simplified error reporting | |
| | * Documentation updates | |
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| | * Fix for wrong value NORMALDISPLAY for SSD1331 device | |
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| | * Viewport/scrolling support | |
| | * Remove pygame as an install dependency in setup | |
| | * Ensure SH1106 device collapses color images to monochrome | |
| | * Fix for emulated devices: do not need cleanup | |
| | * Fix to allow gifanim emulator to process 1-bit images | |
| | * Establish a single threadpool for all virtual viewports | |
| | * Fix issue preventing multiple threads from running concurrently | |
| | * Documentation updates | |
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| | * Fix boundary condition error when supplying max-frames to gifanim | |
| | * Bit pattern calc rework when conveting color -> monochrome | |
| | * Approx 20% performance improvement in ``display`` method | |
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