Clear unknowns in Helicopter

[Saritus]

No description provided.

[Saritus]

Suggestion: We could introduce preprocessor #defines to replace the magic integer values used for m_status

Like this:

// In LEGO1\lego\legoomni\include\helicopter.h
#define HELICOPTER_STATUS_LANDED 0
#define HELICOPTER_STATUS_TAKINGOFF 1

// In LEGO1\lego\legoomni\src\actors\helicopter.cpp
m_state->m_status = HELICOPTER_STATUS_LANDED;

[xZise]

Usually, when I cleared unknowns and found those "states" I used an enum like in TowTrack. See also 05360b4.