feature：允许合同修改销售工程师，添加修改日志

src/views/contract/components/DetailsRecords.vue

@@ -78,6 +78,10 @@
                 <span>{{ item.opnContent.contractName }}</span>
               </p>
             </template>
+            <p v-if="item.opnContent.orig_incharge_name">
+              销售：
+              <span>{{ item.opnContent.orig_incharge_name + ' => ' + item.opnContent.incharge_name }}</span>
+            </p>
           </div>
         </li>
       </ul>

src/views/contract/components/Edit.vue

@@ -74,7 +74,6 @@
           <el-form-item label="销售工程师" prop="inchargeName">
             <el-input
               v-model="editForm.inchargeName"
-              :disabled="true"
               placeholder="请选择销售工程师"
               readonly
               suffix-icon="el-icon-search"

src/views/contract/components/RenewEdit.vue

@@ -88,7 +88,6 @@
           <el-form-item label="销售工程师" prop="inchargeName">
             <el-input
               v-model="editForm.inchargeName"
-              :disabled="true"
               placeholder="请选择销售工程师"
               readonly
               suffix-icon="el-icon-search"