public async Task AddVideo(TransmissionDTO newVideo)
        {
            await _context.Transmissions.AddAsync(Mapper.Map <TransmissionDTO, Transmission>(newVideo));

            await _context.SaveChangesAsync();
        }
        public async Task AddCamera(Camera newCamera)
        {
            await _context.Cameras.AddAsync(newCamera);

            await _context.SaveChangesAsync();
        }