Distribute speculos as a single binary

[greenknot]

Here are a few notes on how to use pyinstaller to produce a single binary (qemu-user-static is still a requirement, but I guess it can also be embedded):

pyinstaller --onefile --windowed --add-data api/resources/:/api/resources/ --add-data api/swagger/:/api/swagger/ --add-binary build/src/launcher:/build/src/ --add-data cxlib:/cxlib/ speculos.py

which runs successfuly:

root@c3a1333f6f08:/speculos# ls -lh dist/speculos 
-rwxr-xr-x 1 root root 12M Jun 28 00:07 dist/speculos
root@c3a1333f6f08:/speculos# ldd dist/speculos 
	linux-vdso.so.1 (0x00007ffda37b3000)
	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fe6e15fd000)
	libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fe6e15e1000)
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fe6e15be000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fe6e13cc000)
	/lib64/ld-linux-x86-64.so.2 (0x00007fe6e162f000)
root@c3a1333f6f08:/speculos# ./dist/speculos --display headless ./apps/btc.elf 
[*] speculos launcher revision: 027fd47
[*] using SDK version 2.0
[*] loading CXLIB from "/tmp/_MEIlTzPby/cxlib/cx-2.0.elf"
[*] patching svc instruction at 0x125c74
[*] patching svc instruction at 0x40005d8c
 * Serving Flask app 'api.api' (lazy loading)
 * Environment: development
 * Debug mode: off
00:12:32.236:werkzeug:  * Running on all addresses.
   WARNING: This is a development server. Do not use it in a production deployment.
00:12:32.236:werkzeug:  * Running on http://172.17.0.2:5000/ (Press CTRL+C to quit)