Add LxScheduler constructors to TIA

[benjaminloerincz]

Add these constructors of namespace LxScheduler to TIA:

• LxScheduler.ServiceAppointmentRequestInfo(Datetime startDate, Datetime endDate, List<lxscheduler.ServiceResourceInfo> ServiceResources, String SchedulingPolicyId, String workTypeGroupId, String accountId, String primaryResourceId, String workTypeId, String correlationId)
• LxScheduler.ServiceResourceInfo(String userId, String userName, String email, String serviceResourceId, List territoryIds, String resourceType)
• LxScheduler.ServiceResourceSchedule(String serviceResourceId, Set<lxscheduler.UnavailableTimeslot> unavailableTimeslots)
• LxScheduler.UnavailableTimeslot(Datetime timeMin, Datetime timeMax)