Jerome Berthier authored Apr 16, 2019 and Romain Bignon committed May 19, 2019

Note that there is less information than before for investment (no code, no unit
quantity/price).

The behavior is also modified, unstead of one account grouping everything,
there are now several accounts (PEE, PERCO, ...).

As a result, accounts id are modified. It is now 'client_number' + 'account.label',
instead of 'client_name' + 'client_number'.