[IMP] stock, stock_zebra: add label on picking type

This commit adds the posibility to print labels containing the barcode 
of a picking type. There are two available formats : pdf or zpl

addons/stock/report/report_stockpicking_operations.xml

@@ -164,5 +164,30 @@
                 </t>
             </t>
         </template>
+        <template id="report_picking_type_label">
+            <t t-call="web.basic_layout">
+                <t t-foreach="docs" t-as="o">
+                    <div class="page">
+                        <div class="oe_structure"/>
+                        <div class="row">
+                            <div class="col-8">
+                                <table class="table table-condensed" style="border-bottom: 0px solid white !important;width: 3in;">
+                                    <tr>
+                                      <th style="text-align: left;">
+                                        <span t-field="o.name"/>
+                                      </th>
+                                    </tr>
+                                    <tr>
+                                        <td style="text-align: center; vertical-align: middle;" class="col-5">
+                                            <img t-if="o.barcode" t-att-src="'/report/barcode/?type=%s&amp;value=%s&amp;width=%s&amp;height=%s' % ('Code128', o.barcode, 600, 150)" style="width:100%;height:20%;"/>
+                                        </td>
+                                    </tr>
+                                </table>
+                            </div>
+                        </div>
+                    </div>
+                </t>
+            </t>
+        </template>
     </data>
 </odoo>

addons/stock/report/stock_report_views.xml

@@ -60,6 +60,15 @@
             file="stock.report_lot_label"
             print_report_name="'Lot-Serial - %s' % object.name"
         />
+        <report
+            string="Operation type (PDF)"
+            id="action_report_picking_type_label"
+            model="stock.picking.type"
+            report_type="qweb-pdf"
+            name="stock.report_picking_type_label"
+            file="stock.report_picking_type_label"
+            print_report_name="'Operation-type - %s' % object.name"
+        />
         <report
             id="action_report_stock_rule"
             model="product.template"

addons/stock_zebra/report/picking_templates.xml

@@ -35,5 +35,21 @@
                 </t>
             </t>
         </template>
+
+        <template id="label_picking_type_view">
+            <t t-foreach="docs" t-as="operation">
+                <t t-translation="off">
+^XA
+^FO100,50
+^A0N,44,33^FD<t t-esc="operation.name"/>^FS
+<t t-if="operation.barcode">
+^FO100,100
+^BCN,100,Y,N,N
+^FD<t t-esc="operation.barcode"/>^FS
+</t>
+^XZ
+                </t>
+            </t>
+        </template>
     </data>
 </odoo>

addons/stock_zebra/report/stock_reports.xml

@@ -57,5 +57,12 @@
             file="stock_zebra.label_product_packaging_view"
             report_type="qweb-text"
         />
+        <report id="label_picking_type"
+            model="stock.picking.type"
+            string="Operation type (ZPL)"
+            name="stock_zebra.label_picking_type_view"
+            file="stock_zebra.label_picking_type_view"
+            report_type="qweb-text"
+        />
     </data>
 </odoo>