added List researches Backend

backend/src/main/java/ovh/herisson/Clyde/EndPoints/ApplicationsController.java

@@ -52,6 +52,7 @@ public class ApplicationsController {
 
         //if unAuthed
         authorizedApps.add(Applications.Login);
+        authorizedApps.add(Applications.ListResearches);
 
 		User user = authServ.getUserFromToken(token);
 		if(user == null)

backend/src/main/java/ovh/herisson/Clyde/Tables/Applications.java

@@ -21,5 +21,7 @@ public enum Applications {
     // profile of a researcher
     ResearcherProfile,
     ManageResearcherProfile,
-    StudentsList
+
+    //the list of all researches (filterable)
+    ListResearches, StudentsList
 }