p7zip dependency on macOS

[grosbecyk]

Running vsrepo.py withtout p7zip installed on mac gives this error:

Fetching: https://github.com/Stefan-Olt/vs-plugin-build/releases/download/vsplugin/com.holywu.curve/r3/darwin-aarch64/2024-09-30T20.52.46%2B00.00Z/Curve-r3-darwin-aarch64.zip
Traceback (most recent call last):
  File "/Users/admin/Git/vsrepo/./vsrepo.py", line 926, in <module>
    res = install_package(name)
  File "/Users/admin/Git/vsrepo/./vsrepo.py", line 718, in install_package
    fres = install_files(p)
  File "/Users/admin/Git/vsrepo/./vsrepo.py", line 682, in install_files
    result = subprocess.run([cmd7zip_path, "e", "-so", tfpath, fn_props[0]], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  File "/opt/homebrew/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/subprocess.py", line 554, in run
    with Popen(*popenargs, **kwargs) as process:
         ~~~~~^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/subprocess.py", line 1036, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
    ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                        pass_fds, cwd, env,
                        ^^^^^^^^^^^^^^^^^^^
    ...<5 lines>...
                        gid, gids, uid, umask,
                        ^^^^^^^^^^^^^^^^^^^^^^
                        start_new_session, process_group)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/python@3.13/3.13.0_1/Frameworks/Python.framework/Versions/3.13/lib/python3.13/subprocess.py", line 1966, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '7z'

Installing p7zip using brew install p7zip fixes the issue.

Shouldn't this be documented?

Thanks