Initial support for RMT in ESP32-H2

[SergioGasquez]

• Adds initial support for RMT and the pulse_control example.
• Enable esp-hal-smartled for ESP32-H2
• Updated documentation for all pulse_control examples
• Adds the ram example

For testing purposes I am using my forked PAC, this needs to be updated once that esp-rs/esp-pacs#121 is merged and before merging this PR, hence the Draft PR. Updated!

Here is the LA capture of the pulse_control example:

Here is the output of the ram example:

I (212) boot: Disabling RNG early entropy source...
W (217) bootloader_random: bootloader_random_disable() has not been implemented yet
RAM function located at 0x40804008
0x40804008 - ram::function_in_ram
    at /home/sergio/Documents/Espressif/forks/esp-hal/esp32h2-hal/examples/ram.rs:100
SOME_INITED_DATA [aa, bb]
SOME_UNINITED_DATA [7b, 3a]
SOME_ZEROED_DATA [0, 0, 0, 0, 0, 0, 0, 0]
SOME_INITED_DATA [ff, bb]
SOME_UNINITED_DATA [7b, 3a]
SOME_ZEROED_DATA [ff, 0, 0, 0, 0, 0, 0, 0]
Counter 0
RTC_FAST function located at 0x50000000
0x50000000 - ram::function_in_rtc_ram
    at /home/sergio/Documents/Espressif/forks/esp-hal/esp32h2-hal/examples/ram.rs:105
Result 42
Hello world!
Hello world!
Hello world!

[bjoernQ]

LGTM

[jessebraham]

LGTM