SIMD-accelerated Machine Vision on an ESP32-S3

Recently [shraiwi] decided to have a bit of good nerdy fun and implement the FAST machine vision algorithm on an ESP32-S3 using its SIMD ISA. This involves using the assembly instructions for the ISA, making for an exciting opportunity to become familiar with this part of this Xtensa Lx7-based twin-core MCU. The Features from Accelerated Segment Test ( FAST ) algorithm is a corner detection method that can determine with reasonable accuracy and in real-time whether a given input frame contains s