for each selected, loop for post participation, then get response and commit state

src/Bundle/ChillPersonBundle/Resources/public/vuejs/_api/AddPersons.js

@@ -3,6 +3,11 @@ const
    format = 'json'
 ;
 
+/* 
+* Endpoint chill_person_search, method GET, get a list of persons
+* 
+*  @query string - the query to search for
+*/
 let searchPersons =  (query) => {
    let url = `/${locale}/search.${format}?name=person_regular&q=${query}`;
    return fetch(url)