Create route for Opinions

create OpinionRepository
create OpinionVoter
create OpinionChoiceRef
create extention String.toUUID() and List<String>.toUUID()
create OpinionAggregation
create interface RequestBuilderWithCreator for create entity by request
rename opinion_list to opinion_choice
create sql function find_citizen_opinions
fix sql function find_citizen_opinions_by_target_id
fix sql funciton find_opinion_choices

src/main/kotlin/fr/dcproject/entity/request/Request.kt

@@ -1,3 +1,14 @@
 package fr.dcproject.entity.request
 
-interface Request
+import fr.dcproject.entity.CitizenRef
+import fr.postgresjson.entity.EntityI
+
+interface Request
+
+interface RequestBuilder<E: EntityI> : Request {
+    fun create(): E
+}
+
+interface RequestBuilderWithCreator<C: CitizenRef, E: EntityI> : Request {
+    fun create(citizen: C): E
+}