message: try to fix macos search paths for python
diff: @@ -119,6 +119,10 @@ class BoardControllerDLL (object):
  os.environ['PATH'] = dir_path + os.pathsep + os.environ.get ('PATH', '')
  else:
  os.environ['LD_LIBRARY_PATH'] = dir_path + os.pathsep + os.environ.get ('LD_LIBRARY_PATH', '')
  + # for MacOS there are a few more env vars to search for libraries
  + if platform.system () == 'Darwin':
  + os.environ['DYLD_LIBRARY_PATH '] = dir_path + os.pathsep + os.environ.get ('DYLD_LIBRARY_PATH ', '')
  + os.environ['DYLD_FALLBACK_LIBRARY_PATH '] = dir_path + os.pathsep + os.environ.get ('DYLD_FALLBACK_LIBRARY_PATH ', '')
  self.lib = ctypes.cdll.LoadLibrary (full_path)
  else:
  raise FileNotFoundError ('Dynamic library %s is missed, did you forget to compile brainflow before installation of python package?' % full_path)
  