feature/AddConfigMenu

[ilang-flytrex]

1. Add config.xml configuration file
2. Add 'Configurations' menu
3. Add stale cx_Freeze cleaning to the deploy stage
4. Add a functionality to select the DSDL branch for update
5. Add a functionality that extract all the existing branches in 'Flytrex/public_regulated_data_types' repo
6. Add the version to the main window
7. Increment the flytrex version to 0.0.3

[Copilot]

Pull request overview

This PR adds a Flytrex-specific configuration mechanism and UI for selecting which DSDL branch to use for update checks, while also tightening Windows MSI/deploy behavior and surfacing version info in the app title.

Changes:

• Add config.xml plus read/write logic and a new “Configurations” menu to select the DSDL branch (and fetch available branches from GitHub).
• Improve DSDL packaging/update robustness by validating staged/extracted DSDL content and generating/using a DSDL manifest for pruning stale files.
• Update Windows build/deploy flow (clean stale cx_Freeze outputs) and bump Flytrex version to 0.0.3.

Reviewed changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
winbuild.bat	Cleans build/ and dist/ before packaging to avoid stale cx_Freeze outputs.
setup.py	Stages config.xml, validates bundled DSDL, and writes a DSDL manifest into the staged specs for MSI builds.
dronecan_gui_tool/version.py	Increments Flytrex version tuple to 0.0.3.
dronecan_gui_tool/main.py	Adds config read/write, Configurations menu, branch discovery worker, selected-branch update checks, DSDL extraction validation, and version in window title.
config.xml	Adds default configuration file with the default DSDL branch.
bin/dronecan_gui_tool	Adds manifest-based pruning of installed DSDL specs at startup to remove stale files.

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