Add FreeBSD (tested) and other BSD systems (not tested) to build and run.
    
    I fail to build TIFF code: it requires access to libtiff internals but it
    unavailable with libtiff prom ports. Probably pre build form
    thirdparty/tiff-4.0.3 should fix this, but I don't check this.
    Tiff code disabled for work but available in options.
    
    I fail with SSE2 too, there is some mess with class initialization:
    TRaster32P rout32 = rout; have no idea how to fix it.
    If some one want to play with it, then try to build with
    CFLAGS+= -DUSE_SSE2 -DDWORD=uint32_t -D_aligned_malloc=aligned_alloc -D_aligned_free=free
    on non windows system.
    
    FarmServer::queryHwInfo() - now uses TSystem::***() to collect system info,
    to avoid code duplication.
    
    Add pthread as required lib.