Add price to list page

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/src/main/resources/templates/booklist.html

@@ -16,6 +16,7 @@
 				<th>Title</th>
 				<th>ISBN</th>
 				<th>Year</th>
+				<th>Price</th>
 				<th>Actions</th>
 				<th></th>
 			</tr>
@@ -24,6 +25,7 @@
 				<td th:text="${book.title}"></td>
 				<td th:text="${book.isbn}"></td>
 				<td th:text="${book.year}"></td>
+				<td th:text="${#numbers.formatDecimal(book.price, 1, 2)}"></td>
 				<td><a class="btn btn-danger"
 				th:attr="onclick='return confirm(\'' + 'Delete book: ' + ${book.title} + '?' + '\');'"
 					th:href="@{/bookdelete/{id}(id=${book.id})}">Delete</a></td>