regroup all tasks pieces in one folder

src/app/app.module.ts

@@ -12,20 +12,20 @@ import { RoleComponent } from './pieces/role/role.component';
 import { MissionContextComponent } from './pieces/mission-context/mission-context.component';
 import { GameEducationnalObjectiveComponent } from './pieces/game-educationnal-objective/game-educationnal-objective.component';
 import { GameContextComponent } from './pieces/game-context/game-context.component';
-import { TaskComponent } from './pieces/task/task.component';
-import { AnnexeTaskComponent } from './pieces/annexe-task/annexe-task.component';
+import { TaskComponent } from './pieces/tasks/task/task.component';
+import { AnnexeTaskComponent } from './pieces/tasks/annexe-task/annexe-task.component';
 import { CommentsComponent } from './sider-pieces/comments/comments.component';
 import { RepeatComponent } from './sider-pieces/repeat/repeat.component'; 
 import { CommentComponent } from './components/comment/comment.component';
-import { RandomEventComponent } from './pieces/random-event/random-event.component';
+import { RandomEventComponent } from './pieces/tasks/random-event/random-event.component';
 import { CharactersComponent } from './sider-pieces/characters/characters.component';
 import { CharacterComponent } from './components/character/character.component';
 import { RulesComponent } from './sider-pieces/rules/rules.component';
 import { StepComponent } from './pieces/step/step.component';
-import { FinalTaskComponent } from './pieces/final-task/final-task.component';
-import { RepeatTaskComponent } from './pieces/repeat-task/repeat-task.component';
+import { FinalTaskComponent } from './pieces/tasks/final-task/final-task.component';
+import { RepeatTaskComponent } from './pieces/tasks/repeat-task/repeat-task.component';
 import { InteruptComponent } from './sider-pieces/interupt/interupt.component';
-import { OptionnalTaskComponent } from './pieces/optionnal-task/optionnal-task.component';
+import { OptionnalTaskComponent } from './pieces/tasks/optionnal-task/optionnal-task.component';
 
 import { DragScrollDirective } from './directives/drag-scroll.directive';
 import { MouseWheelZoomDirective } from './directives/mouse-wheel-zoom.directive';