pixi global - support fonts

[wolfv]

Problem description

It would be interesting if pixi global would also support font packages.

On macOS I think we could (sym-)link the font to ~/Library/Fonts.

On Linux, there is a similar directory under ~/.local/share/fonts (need to call fc-cache clean or something afterwards).

On Windows, a snippet like this might work:

        fonts_dir = os.path.join(os.environ["WINDIR"], "Fonts")
        font_reg_path = os.path.join(os.environ["WINDIR"], r"Fonts\{}".format(font_name))

        # Copy font to Windows Fonts folder
        shutil.copy2(font_path, font_reg_path)

        # Register font in system
        import winreg
        with winreg.OpenKey(winreg.HKEY_LOCAL_MACHINE, r"Software\Microsoft\Windows NT\CurrentVersion\Fonts", 0, winreg.KEY_SET_VALUE) as key:
            winreg.SetValueEx(key, font_name, 0, winreg.REG_SZ, font_name)