Added api for custom timetable events

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEvent.dart

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+import 'dart:convert';
+
+import 'package:http/http.dart';
+import 'package:http/http.dart' as http;
+
+import '../../mhslApi.dart';
+import 'getCustomTimetableEventParams.dart';
+import 'getCustomTimetableEventResponse.dart';
+
+class GetCustomTimetableEvent extends MhslApi<GetCustomTimetableEventResponse> {
+  GetCustomTimetableEventParams params;
+  GetCustomTimetableEvent(this.params) : super("server/timetable/customEvents?user=${params.user}");
+
+  @override
+  GetCustomTimetableEventResponse assemble(String raw) {
+    return GetCustomTimetableEventResponse.fromJson({"events": jsonDecode(raw)});
+  }
+
+  @override
+  Future<Response>? request(Uri uri) {
+    return http.get(uri);
+  }
+}

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventCache.dart

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+import 'dart:convert';
+
+import '../../../requestCache.dart';
+import 'getCustomTimetableEvent.dart';
+import 'getCustomTimetableEventParams.dart';
+import 'getCustomTimetableEventResponse.dart';
+
+class GetCustomTimetableEventCache extends RequestCache<GetCustomTimetableEventResponse> {
+  GetCustomTimetableEventParams params;
+
+  GetCustomTimetableEventCache(this.params, {onUpdate, renew}) : super(RequestCache.cacheMinute, onUpdate, renew: renew) {
+    start("MarianumMobile", "customTimetableEvents");
+  }
+
+  @override
+  Future<GetCustomTimetableEventResponse> onLoad() {
+    return GetCustomTimetableEvent(params).run();
+  }
+
+  @override
+  GetCustomTimetableEventResponse onLocalData(String json) {
+    return GetCustomTimetableEventResponse.fromJson(jsonDecode(json));
+  }
+}

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventParams.dart

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+import 'package:json_annotation/json_annotation.dart';
+
+part 'getCustomTimetableEventParams.g.dart';
+
+@JsonSerializable()
+class GetCustomTimetableEventParams {
+  String user;
+
+  GetCustomTimetableEventParams(this.user);
+
+  factory GetCustomTimetableEventParams.fromJson(Map<String, dynamic> json) => _$GetCustomTimetableEventParamsFromJson(json);
+  Map<String, dynamic> toJson() => _$GetCustomTimetableEventParamsToJson(this);
+}

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventParams.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'getCustomTimetableEventParams.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+GetCustomTimetableEventParams _$GetCustomTimetableEventParamsFromJson(
+        Map<String, dynamic> json) =>
+    GetCustomTimetableEventParams(
+      json['user'] as String,
+    );
+
+Map<String, dynamic> _$GetCustomTimetableEventParamsToJson(
+        GetCustomTimetableEventParams instance) =>
+    <String, dynamic>{
+      'user': instance.user,
+    };

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventResponse.dart

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+import 'package:json_annotation/json_annotation.dart';
+
+import '../../../apiResponse.dart';
+import '../customTimetableEvent.dart';
+
+part 'getCustomTimetableEventResponse.g.dart';
+
+@JsonSerializable()
+class GetCustomTimetableEventResponse extends ApiResponse {
+  List<CustomTimetableEvent> events;
+
+  GetCustomTimetableEventResponse(this.events);
+
+  factory GetCustomTimetableEventResponse.fromJson(Map<String, dynamic> json) => _$GetCustomTimetableEventResponseFromJson(json);
+  Map<String, dynamic> toJson() => _$GetCustomTimetableEventResponseToJson(this);
+}

lib/api/mhsl/customTimetableEvent/get/getCustomTimetableEventResponse.g.dart

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+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'getCustomTimetableEventResponse.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+GetCustomTimetableEventResponse _$GetCustomTimetableEventResponseFromJson(
+        Map<String, dynamic> json) =>
+    GetCustomTimetableEventResponse(
+      (json['events'] as List<dynamic>)
+          .map((e) => CustomTimetableEvent.fromJson(e as Map<String, dynamic>))
+          .toList(),
+    );
+
+Map<String, dynamic> _$GetCustomTimetableEventResponseToJson(
+        GetCustomTimetableEventResponse instance) =>
+    <String, dynamic>{
+      'events': instance.events,
+    };