feat: Trello board JSON import (#352)

Closes #27, closes #105

client/src/api/boards.js

@@ -1,4 +1,5 @@
 import socket from './socket';
+import http from './http';
 import { transformCard } from './cards';
 import { transformAttachment } from './attachments';
 
@@ -7,6 +8,9 @@ import { transformAttachment } from './attachments';
 const createBoard = (projectId, data, headers) =>
   socket.post(`/projects/${projectId}/boards`, data, headers);
 
+const createBoardWithImport = (projectId, data, requestId, headers) =>
+  http.post(`/projects/${projectId}/boards?requestId=${requestId}`, data, headers);
+
 const getBoard = (id, headers) =>
   socket.get(`/boards/${id}`, undefined, headers).then((body) => ({
     ...body,
@@ -23,6 +27,7 @@ const deleteBoard = (id, headers) => socket.delete(`/boards/${id}`, undefined, h
 
 export default {
   createBoard,
+  createBoardWithImport,
   getBoard,
   updateBoard,
   deleteBoard,