Add examples using ESP32 peripherals about lv_port_esp32

[kisvegabor]

I've added the pinned label to not mark it as stale.

[C47D]

go away

[jeremyjh]

There is more than one way to do it, but yeah one possibility would be to have a separate main for each example that are not added to the build files. Instead the project has a single main.c that includes the correct main file for the chose example based on those CONFIG defines, e.g.

#ifdef CONFIG_LVGL_EXAMPLE_WIFI 
#include "examples/wifi_main.c"
#endif

You don't want this configuration prompt in the library because the library doesn't use the examples, but you can have a Kconfig file in the main folder. I did that in the loboris driver fork for the settings that apply only to the example vs the library:
https://github.com/jeremyjh/ESP32_TFT_library/blob/master/main/Kconfig.projbuild

[stale]

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