Copying the mockClient (to pass it to child tasks) failed because mod…

[bartvanb]

…ule attribute could not be copied. Now not setting algorithm module as attribute

This change resolves the error below, which occurred because the MockClient had the self.lib attribute which is a module and could not be copy.deepcopy'd

Traceback (most recent call last):
    average_task = client.task.create(
  File "c:\users\bbe2101.54580\projects\vantage6\vantage6-master\vantage6-client\vantage6\tools\mock_client.py", line 294, in create
  File "C:\Users\bbe2101.54580\AppData\Local\miniconda3\envs\t3100rc1\lib\copy.py", line 172, in deepcopy
    y = _reconstruct(x, memo, *rv)
  File "C:\Users\bbe2101.54580\AppData\Local\miniconda3\envs\t3100rc1\lib\copy.py", line 271, in _reconstruct
    state = deepcopy(state, memo)
  File "C:\Users\bbe2101.54580\AppData\Local\miniconda3\envs\t3100rc1\lib\copy.py", line 146, in deepcopy
    y = copier(x, memo)
  File "C:\Users\bbe2101.54580\AppData\Local\miniconda3\envs\t3100rc1\lib\copy.py", line 231, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
  File "C:\Users\bbe2101.54580\AppData\Local\miniconda3\envs\t3100rc1\lib\copy.py", line 161, in deepcopy
TypeError: cannot pickle 'module' object

[frankcorneliusmartin]

lgtm