Implement application description for ESP-IDF image format

[SergioGasquez]

New versions of ESP-IDF bootloader expect to have application description, see https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/app_image_format.html#application-description.

Here's the macro in esp-idf-sys: https://github.com/esp-rs/esp-idf-sys/blob/master/src/app_desc.rs#L2

@bugadani suggested having a similar macro on esp_hal::init that could be configured with esp-config

[MabezDev]

One thing we need to be careful about using esp-config is that we namespace those options properly so they're specific to esp-idf's bootloader and won't overlap with any relevant mcu boot options.

[MabezDev]

and we should also be careful to only include the relevant linker changes (e.g https://github.com/espressif/esp-idf/blob/c5865270b50529cd32353f588d8a917d89f3dba4/components/esp_system/ld/esp32/sections.ld.in#L300-L322) when supporting the esp-idf bootloader.

[MabezDev]

Adding the 1.0 blocker as we need to solve this update the bootloaders in espflash for v4? Correct me if I'm wrong