feat: add country subdivision question (#232)

* feat(wip): add new country subdivision question

* chore: get rid of unused uuid

* feat(wip): map regions to value label for options

* ci: fix release config

* feat(wip): connect subdivision question to country question current value

* fix: sort by priority after alphabetical sort

* chore: add more use cases to the example form for country subdivisions

* feat: add valueType config parameter to customize return value

* feat: reset select value when linked country changes value

* fix: avoid using toReversed as it's recent node feature

* chore: remove tests in example app

* chore: add example of country subdivision for a fix country

* chore: declare CountrySubdivisionValueType enum

* refactor: move buildCountrySubdivisonOptions to a separate file

* chore: export CountrySubdivisionValueType

* test: add buildCountrySubdivisonOptions unit tests

* test: add basic unit test of the QuestionCountrySubdivision component

* docs: add documentation for country_subdivision question

* docs: add documentation for country_subdivision question

* docs: improve documentation

* chore: update minor dependencies

Author: inigomarquinez

README.md

@@ -15,6 +15,9 @@ const App = () => {
           <li>
             <Link to={'countries'}>Countries form</Link>
           </li>
+          <li>
+            <Link to={'country_subdivisions'}>Country subdivision form</Link>
+          </li>
         </ul>
       </nav>
       <div>