Added api for custom timetable events

lib/api/mhsl/customTimetableEvent/remove/removeCustomTimetableEvent.dart

@@ -0,0 +1,22 @@
+import 'dart:convert';
+
+import 'package:http/http.dart';
+import 'package:http/http.dart' as http;
+
+import '../../mhslApi.dart';
+import 'removeCustomTimetableEventParams.dart';
+
+class RemoveCustomTimetableEvent extends MhslApi<void> {
+  RemoveCustomTimetableEventParams params;
+
+  RemoveCustomTimetableEvent(this.params) : super('server/timetable/customEvents');
+
+  @override
+  void assemble(String raw) {}
+
+  @override
+  Future<Response>? request(Uri uri) {
+    return http.delete(uri, body: jsonEncode(params.toJson()));
+  }
+
+}

lib/api/mhsl/customTimetableEvent/remove/removeCustomTimetableEventParams.dart

@@ -0,0 +1,13 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'removeCustomTimetableEventParams.g.dart';
+
+@JsonSerializable()
+class RemoveCustomTimetableEventParams {
+  String id;
+
+  RemoveCustomTimetableEventParams(this.id);
+
+  factory RemoveCustomTimetableEventParams.fromJson(Map<String, dynamic> json) => _$RemoveCustomTimetableEventParamsFromJson(json);
+  Map<String, dynamic> toJson() => _$RemoveCustomTimetableEventParamsToJson(this);
+}

lib/api/mhsl/customTimetableEvent/remove/removeCustomTimetableEventParams.g.dart

@@ -0,0 +1,19 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'removeCustomTimetableEventParams.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+RemoveCustomTimetableEventParams _$RemoveCustomTimetableEventParamsFromJson(
+        Map<String, dynamic> json) =>
+    RemoveCustomTimetableEventParams(
+      json['id'] as String,
+    );
+
+Map<String, dynamic> _$RemoveCustomTimetableEventParamsToJson(
+        RemoveCustomTimetableEventParams instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+    };