machine/esp32s3: implement Pin.SetInterrupt for GPIO pin change interrupts

Add support for rising, falling, and toggle edge interrupts on all
ESP32-S3 GPIO pins (0-48). The GPIO peripheral interrupt is routed
to CPU interrupt 8 via the interrupt matrix. The ISR reads both
STATUS and STATUS1 registers to cover the full 49-pin range.

Signed-off-by: deadprogram <ron@hybridgroup.com>

src/examples/pininterrupt/xiao-esp32s3.go

@@ -0,0 +1,11 @@
+//go:build xiao_esp32s3
+
+package main
+
+import "machine"
+
+const (
+	button          = machine.D1
+	buttonMode      = machine.PinInput
+	buttonPinChange = machine.PinFalling
+)