Audio support on Mac

[humbertodias]

Nanoarch uses ALSA that is not supported on Mac.
Maybe we could replace it for PortAudio that is system agnostic.

make                                                
mkdir -p build/
cc -Wall -O2 -g -I/opt/homebrew/Cellar/mesa/24.0.2/include -I/opt/homebrew/Cellar/libxext/1.3.6/include -I/opt/homebrew/Cellar/libxfixes/6.0.1/include -I/opt/homebrew/Cellar/libx11/1.8.7/include -I/opt/homebrew/Cellar/libxcb/1.16/include -I/opt/homebrew/Cellar/libxau/1.0.11/include -I/opt/homebrew/Cellar/libxdmcp/1.1.4/include -I/opt/homebrew/Cellar/glew/2.2.0_1/include -I/opt/homebrew/Cellar/glfw/3.4/include -I/opt/homebrew/Cellar/xorgproto/2023.2/include -c -MMD -o build/nanoarch.o nanoarch.c
nanoarch.c:13:10: fatal error: 'alsa/asoundlib.h' file not found
#include <alsa/asoundlib.h>

Tested on
23.3.0 Darwin Kernel Version 23.3.0: Wed Dec 20 21:30:44 PST 2023; root:xnu-10002.81.5~7/RELEASE_ARM64_T6000 arm64