Naive C++23 implementation for the airlock problem

[AbsintheScripting]

Using a mutex on the airlock for synchronization.

• Astronauts are printing to the console what they are doing
• Work is simulated with thread-sleeps
• Unit tests using GTest validate correctness

Example output:

[Astro-Outside] Starting mission to move from outside to inside.
[Astro-Inside] Starting mission to move from inside to outside.
[Astro-Inside] Trying to open the inside door...
[Astro-Outside] Trying to open the outside door...
[Astro-Inside] Could not open inside door.
[Astro-Inside] Trying to cycle airlock from inside...
[Astro-Inside] Could not cycle airlock.
[Astro-Outside] Opened outside door.
[Astro-Outside] Moving to chamber...
[Astro-Inside] Trying to open the inside door...
[Astro-Outside] Reached chamber.
[Astro-Outside] Closing outside door...
[Astro-Inside] Could not open inside door.
[Astro-Inside] Trying to cycle airlock from inside...
[Astro-Inside] Could not cycle airlock.
[Astro-Outside] Closed the outside door.
[Astro-Outside] Trying to cycle airlock from chamber...
[AirLock] Chamber is cycling from empty to pressurized state.
[Astro-Inside] Trying to open the inside door...
[Astro-Inside] Could not open inside door.
[Astro-Inside] Trying to cycle airlock from inside...
[Astro-Inside] Could not cycle airlock.
[AirLock] Chamber cycled to pressurized state.
[Astro-Outside] Cycled airlock. Safe to exit now.
[Astro-Outside] Trying to open the inside door...
[Astro-Inside] Trying to open the inside door...
[Astro-Outside] Opened inside door.
[Astro-Outside] Moving to inside...
[Astro-Inside] Someone else opened the door.
[Astro-Inside] Moving to chamber...
[Astro-Outside] Reached inside.
[Astro-Outside] Closing inside door...
[Astro-Inside] Reached chamber.
[Astro-Inside] Closing inside door...
[Astro-Outside] Closed the inside door.
[Astro-Outside] Reached destination inside.
[Astro-Inside] Someone else closed the door.
[Astro-Inside] Trying to cycle airlock from chamber...
[AirLock] Chamber is cycling from pressurized to empty state.
[AirLock] Chamber cycled to empty state.
[Astro-Inside] Cycled airlock. Safe to exit now.
[Astro-Inside] Trying to open the outside door...
[Astro-Inside] Opened outside door.
[Astro-Inside] Moving to outside...
[Astro-Inside] Reached outside.
[Astro-Inside] Closing outside door...
[Astro-Inside] Closed the outside door.
[Astro-Inside] Reached destination outside.
All astronauts have finished their maneuvers.