This pull requests adds a menuconfig option named `ESP32_HUB75_USE_GFX` which is used to determine if the Adafruit GFX component should be required and used for the build. menuconfig options are the standard way to change behavior of components in `esp-idf`.
[Commit b8367d9](b8367d95d2) introduced a backwards incompatible change that caused `idf-idf` to only require the Adafruit-GFX-Library component if `ARDUINO_ARCH_ESP32` was set. `ARDUINO_ARCH_ESP32` is set in platformIO, the arduino software but not in the standalone `esp-idf` installation.
Implement VirtualDisplayClass rotation (and let AdaFruit_GFX) be aware of it as well for font printing.
Ability to 'scale' up (zoom) display as a quick and dirty magnification mode.
setRotate(bool) has been replaced by setRotate(int).
0, 1, 2, 3 int inputs are translated to 0, 90, 180 and 270 degrees rotation.
Documentation not updated.
Fix chaining issue that was mentioned in #402
Compatibility breaking change to now explicitly define chaining type: CHAIN_TOP_LEFT_DOWN, CHAIN_TOP_RIGHT_DOWN, CHAIN_BOTTOM_LEFT_UP, CHAIN_BOTTOM_RIGHT_UP
fix: bus noconfig set when using default constructor
fix: options to set config after construction, to enable use of default Constructor
- begin(HUB75_I2S_CFG), setCfg(HUB75_I2S_CFG)
fix: second call of begin({pins}) would bug the pin between config and dma usage
fix: reorder attributes of HUB75_I2S_CFG and MatrixPanel_I2S_DMA to reduce object size (at least in debug mode)
fix: min_refresh_rate to uint16_t -> higher min_refresh_rate possible
fix: hlineDMA and vlineDMA when line starts off matrix it is now partially drawn instead of not at all -> used in Text when size > 1 and letter is scrolling out
