[FEATURE REQUEST]Move to lvgl 9.0

[luc-github]

I did some reading on migration guide and API description - the mechanism seems pretty identical, API is very close but there are a lot of renaming
I plan to really start to work on it when official 9.0 release is done and move to 9.x when first bug release is out

[luc-github]

9.0 is out : https://github.com/lvgl/lvgl/releases/tag/v9.0.0 so time to start

[luc-github]

Looking at the changes - the initialisation is different - and some Api is cleaner
So new API impact mostly display driver and input driver and of course bpc.c , that said espressif seems not yet ready for some drivers because sample code still use lvgl 8.3, https://github.com/espressif/esp-idf/blob/master/examples/peripherals/lcd/i80_controller/main/idf_component.yml
|which show that espressif consider 9.0 is not yet mature to be integrated - also the docs between 9.0 release and latest git have been modified which confirm that we should wait next minor release to recheck integration possibility

[luc-github]

lvgl is now 9.2 and also some espressif sample codes have been updated (https://github.com/espressif/esp-iot-solution/tree/master/examples/display/lcd/rgb_lcd_8bit) - so it will be time to update ESP3D-TFT also

[luc-github]

there is a promising component esp_lvgl_port (https://components.espressif.com/components/espressif/esp_lvgl_port) which bring abstraction layer, power saving function , rotary encoder support, physical button support , so everything for a pendant , but after one week I am still not able to use it without issue , on my ILI9341 using espressif sample code without esp_lvgl_port everything is fine, using the new component the screen using exact same drivers is mirrored ans stuck to mirrored position - so I am guessing component is not yet mature if cannot this old screen ( I even did not started the touch part.....)

So in lvgl 9.2.2 I will keep to do without esp_lvgl_port .....