BTLE for ESP32-S3

[bjoernQ]

• implements BTLE support for ESP32-S3
• fixes lld_pdu.c assertions running BLE example on esp32 chip #78 - not sure why not enabling the RWBLE interrupt fixes this but for me I haven't seen that assert triggered anymore
• coex is implemented but only works in opt-level 1 (seems there are still mis-optimizations going on - no idea how to find out what the problem might be) ... that's why coex on ESP32-S3 isn't mentioned in the README

[bjoernQ]

@MabezDev I tried disabling loop optimization but that is not enough to get the coex example to work - only opt-level 1 makes it work (spoiler: I'm currently trying to update the drivers and with the new drivers none of the S3 examples work in opt-level 3 but disabling loop optimization makes at least ble and dhcp example work - but for coex still opt-level 1 is needed there)

[MabezDev]

Nice work! Works very well for me, the code looks okay to me too :).

I don't know what to suggest regarding the possible compiler issues, they don't seem to be present here (when not using coex) so I guess wait for the new PR to update the blobs and assess then?