* modify values to facilitate test writing
* rename `amount` variable to `balance`

* create test_constants file to prevent circular dependencies
    * modify relevant files : import mock_ud_value from patched.test_constants instead of patched.money

* patched_get_sources() now has a `counter` attribute, and can return different values if called twice
    * can mock the result of an intermediary transaction.

* mod test_get_list_input_for_transaction()
  * to reset the patched_get_sources counter.
  * to make values match new patch behavior
  * to comment what is tested

* Move patched functions from test_membership.py to relevant files
    * blockchain_tools.py
        * create mocked_block variable
        * make both patched_block and patched_head_block return mocked_block
    * auth.py
    * wot.py
* modify a pubkey list in patched/wot.py
* change calls in the tests
* change pubkeys in patched/money.py to match new pubkey_list

* create patched directory
* create files matching the silkaj modules
    * money.py
    * tools.py
    * wot.py
    * blockchain_tools.py
* delete patched.py
* change calls in the tests

   * for each pubkey in the tx confirmation
   * when sending the transaction

   * modify the function display_pubkey() and related tests

    and related tests

* move test_display_amount() and test_display_pubkey() from test_unit_tx.py to test_tui.py