胚料bug修复，销售订单明细行路线修复，编程单下发优化

sf_base/models/base.py

@@ -77,6 +77,7 @@ class MachineTool(models.Model):
     b_axis = fields.Integer('B轴')
     c_axis = fields.Integer('C轴')
     remark = fields.Text('备注')
+    is_binding = fields.Boolean('是否绑定机床', default=False)
     precision = fields.Float('加工精度')
     control_system_id = fields.Many2one('sf.machine.control_system',
                                         string="控制系统")