[cuegui] Add dynamic version fetching for the CueGUI About menu

[ramonfigueiredo]

• Implemented new configuration options in cuegui.yaml:
  • cuegui.use.custom.version: Toggle between using VERSION.in or custom CueGUI version.
  • cuegui.custom.cmd.version.stable: Command to fetch stable version (setenv OPENCUE_BETA 0)
  • cuegui.custom.cmd.version.beta: Command to fetch beta version (setenv OPENCUE_BETA 1)
• Modified Constants.py to fetch version dynamically based on config.
• Updated MainWindows.py to display the correct version (stable or beta) in the About menu.
• Fallback to VERSION.in if custom version is disabled.

[ramonfigueiredo]

CueGUI About menu

If you go to the CueGUI About menu (Cuetopia or Cuecommander):

• Menu: Help > About

The current version doesn't show the CueGUI version, only QT and Python versions

Cuetopia

Cuecommander

New solution: If cuegui.use.custom.version = True, use custom version

• cuegui.custom.cmd.version.stable: Command to fetch stable version (setenv OPENCUE_BETA 0)
• cuegui.custom.cmd.version.beta: Command to fetch beta version (setenv OPENCUE_BETA 1)

New CueGUI About Menu with custom version (BETA version)

Cuetopia

Cuecommander

New solution: New CueGUI About Menu with custom version (STABLE version)

Cuetopia

Cuecommander

If cuegui.use.custom.version = False, use the VERSION.in version

Cuetopia

Cuecommander

New CueGUI About Menu with custom version (STABLE version)

Cuetopia

Cuecommander

[ramonfigueiredo]

The reason for giving the option to show the custom CueGUI version using a shell command:

• Currently, Sony Pictures Imageworks (SPI) uses the SPK and SPAWN (https://getspk.io/) to deploy the CueGUI. So it is interesting to have an option to run the SPK/SPAWN CLI tool to get the current version of the CueGUI (BETA or STABLE versions) using the shell.