Python sample codes compatible with AirSim Unreal PyMavLink and MavProxy

[ss48]

Reference issue

What does this implement/fix?

I am adding extra files that make it compatible with AirSim | Unreal | PyMavLink | MavProxy | ardupilot

Additional information

CheckList

• [ ] Did you add an unittest for your new example or defect fix?
• [ y ] Did you add documents for your new example?
• [ ] All CIs are green? (You can check it after submitting)

[AtsushiSakai]

Sorry too big PR, I cannot review this. Please create an issue to propose this change, then split this PR.