MRP: Manufacturing Order and Manufacturing Execution deprecate Production Report
In order to distinguish the "global" Production Order from the Order given to a Manufacturing Line. The concept of Manufacturing Order has been introduce. To follow this change, Manufacturing Execution is to replace Production Report that has been deprecated.
So the Process has evolved:
- From: Production Order 
➡ Production Report➡ Production Packing List - To: Production Order 
➡ Production Packing List➡ Manufacturing Order➡ Manufacturing Execution 
Notes:
- Manufacturing Execution behaves exactly as the former Production Report
 - Production Report has been deprecated and moved to the bt5: erp5_mrp_legacy
 - It is still possible to define the transformation on the Production Order.
 
The standard MRP process is described in testMRP.py as followed
    Terms
    =====
    PPL : Production Packing List
    ME  : Manufacturing Execution
    PO  : Production Order
    MO  : Manufacturing Order
    IPL : Internal Packing List
    Context
    =======
    The transformation used in this business process is split into two part,
    this is configured by using transformed resource lines with different
    trade phases.
    Business Process
    ================
    The Business process will proceed this way:
    1/ Generate Production Order and confirm it
    2/ Generate Manufacturing Order and confirm it
    2/ Generate Manufacturing Execution p0 which generate a
      the product with a variation to indicate it is a partial product.
      The variation is trade_phase/mrp/p0. It takes place in workshop2
    3/ Delivering the first Manufacturing Execution leads to the build
      of a Production Packing List to move the delivered half built product
      from "workshop2" to "workshop" the next fabrication line.
    4/ Delivering the PPL will build the second Manufacturing Execution p1
      which takes as input the variated expected product and resource 3 and 4.
      It takes place in "workshop" node
    5/ Delivering p1 will build the last production packing List with source
      "workshop" and destination "destination"
    Business Process Schema
    =======================
        order     order     p0      s0      p1     deliver
       ------- S0 ----- S1 ---- S2 ---- S3 ---- S4 -------- S5
         PO         MO      ME1     IPL     ME2       PPL
    Simulation Tree
    ===============
    * PO / new_order_root_simulation_rule
      * Production Order Line
        * default_delivering_rule
          * PPL
            * default_production_rule
              * MO
                * default_transformation_rule
                  * input ME1
                  * input ME1
                  * output ME1 - partial product
                  * input ME2 - partial product
                    * default_transformation_source_rule
                      * IPL
                  * input ME2
                    * default_transformation_source_rule
                  * input ME2
                    * default_transformation_source_rule
                  * output ME2