[GEN] Backport various crash and memory fixes from Zero Hour

[tomsons26]

Partial split from #688

• ZH BuddyThread.cpp fixes string assignment
• ControlBar.cpp fixes invalid science vector access, fixes memory leak on rightHUDCameoWindow, adds various null checks
• ControlBarCommand.cpp adds various null checks
• ControlBarCommandProcessing.cpp adds various null checks
• ControlBarMultiSelect.cpp adds various null checks
• Debug.cpp adds various null checks
• DozerAIUpdate.cpp - fixes out of bounds crash on invalid task id
• GlobalData.cpp - fixes dangling TheWritableGlobalData pointer
• MiniLog.cpp - fixes crash when m_fp is null
• Mouse.cpp - fixes crash when m_cursorTextDisplayString is null
• RankInfo.cpp - fixes memory leak
• RankInfo.h
• Science.cpp - fixes memory leak
• Science.h
• SkirmishGameOptionsMenu.cpp adds various null checks
• SparseMatchFinder.h adds various null checks
• TerrainLogic.cpp - fixes crash when tower is null
• W3DBibBuffer.cpp - fixes crash when there's nothing in buffer
• W3DBridgeBuffer.cpp - fixes crash when there's not enough room in buffer
• W3DTruckDraw.cpp - fixes crash when Tire Bones are null
• W3DWater.cpp - fixes crash when bumpsource is null
• W3dWaypointBuffer.cpp - fixes two memory leaks
• WorkerAIUpdate.cpp - fixes out of bounds crash on invalid task id
• Xfer.cpp - fixes incorrect forced crash when science vector isn't empty

[xezon]

Looks good.