Split macro order (SPLITMACRO)
The definition of the fields sent with the action are as follows:
    | Action type | SPLITMACRO | 
| Action group | 
| Company | CONO | K | 
| Macro ord type | MOTY | K | 
| Macro ord no | MONO | K | 
| Temp macro no | TMON | R | 
| Planning date | PLDT | R | 
The implementation copies a macro order header to create a new macro order. All fields on the new header except the bucket start and stop is equal to the "old" macro order.
The action is implemented in this way:
  - Look-up and copy the macro order header.
 - Retrieve bucket start and stop based on the planning date included in the action. The bucket start/stop is set to be same as on "old" macro order if no planning date is sent.
 - Set the field Temp macro order number on the new macro order to the sent Temp macro order number in the action.
 
Note: This field is used in other actions to be able to find the new macro
      order.