Implement SAFEARRAY

[scimax]

The some functions of the DLL's require a SAFEARRAY object which is defined outside of the Thorlabs namespace, namely in OaIdl.h which is part of the win32 Automation API. In the docs of the win32 Automation API the declaration of the SAFEARRAY can be found:

typedef struct tagSAFEARRAY {
  USHORT         cDims;
  USHORT         fFeatures;
  ULONG          cbElements;
  ULONG          cLocks;
  PVOID          pvData;
  SAFEARRAYBOUND rgsabound[1];
} SAFEARRAY;

This has to be implemented in __binding_template.py as ctypes struct as well as SAFEARRAYBOUND.