Add UI for adding catalog numbers to a series

[php-coder]

On the src/main/webapp/WEB-INF/views/series/info.html page we should add another form to add catalog numbers. It should have inputs for numbers (just a text input) and a catalog name. Also there should be a submit button. Here are examples that can be helpful:

• List of catalogs:

  mystamps/src/main/webapp/WEB-INF/views/site/index.html

  Lines 174 to 184 in 366f099

  	<div class="form-group">
  	<label for="catalogName" th:text="|#{t_catalog}:|">Catalog:</label>
  	<select id="catalogName" name="catalogName" class="form-control">
  	<option value="michel" th:text="#{t_michel}">Michel</option>
  	<option value="scott" th:text="#{t_scott}">Scott</option>
  	<option value="yvert" th:text="#{t_yvert}">Yvert</option>
  	<option value="gibbons" th:text="#{t_sg}">Gibbons</option>
  	<option value="solovyov" th:text="#{t_solovyov}">Solovyov</option>
  	<option value="zagorski" th:text="#{t_zagorski}">Zagorski</option>
  	</select>
  	</div>

• Catalog numbers:

  mystamps/src/main/webapp/WEB-INF/views/series/add.html

  Lines 378 to 399 in 366f099

  	<div class="form-group form-group-sm js-catalogs-info collapse in" th:classappend="|${michelHasErrors ? 'has-error' : ''} ${showCatalogsInfo ? 'js-has-data' : ''}|">
  	<label for="michelNumbers" class="control-label col-sm-3" th:text="#{t_michel}">
  	Michel
  	</label>
  	<div class="col-sm-7">
  	<div class="row">
  	<div class="col-xs-6">
  	<input type="text" id="michelNumbers" class="form-control js-catalog-numbers" th:field="*{michelNumbers}" />
  	</div>
  	<div class="col-xs-3 no-padding">
  	<div class="input-group">
  	<span class="input-group-addon">&euro;</span>
  	<input type="text" class="form-control js-with-tooltip" size="5" title="EUR" th:field="*{michelPrice}" />
  	</div>
  	</div>
  	</div>
  	<!--/*/
  	<span id="michelNumbers.errors" class="help-block" th:if="${#fields.hasErrors('michelNumbers')}" th:each="error : ${#fields.errors('michelNumbers')}" th:text="${error}"></span>
  	<span id="michelPrice.errors" class="help-block" th:if="${#fields.hasErrors('michelPrice')}" th:each="error : ${#fields.errors('michelPrice')}" th:text="${error}"></span>
  	/*/-->
  	</div>
  	</div>

When we submit a form, it should send a PATCH request to API /series/{id} with

[
  { "op": "add", "path": "/michel_numbers", "value": [ "1", "2", "3"] }
]

and reload a page on success. The value of path depends on a value of catalog name -- for Michel catalog, we use "/michel_numbers" but for Scott it should be "/scott_numbers" and so on.

It should show an error when server returns an error. Note that there can be 2 type of errors -- general (for a whole form) and validation error (for a particular field).

Part of #1339

[php-coder]

@ArtemFedorchuk Hi, please, let me know if you need help or if you aren't going to work on this issue. Thanks!

[php-coder]

We can copy&paste code from #1342