IdentityService should only return Generic Types

[pbros]

The IdentityService uses Generic Types for most of it's methods, but not for the "plural" calls, which prevents from using our own DTO types without re-implementing the service or extending it.

For example, the 2 following methods should return Task<TUsersDto<TUserDto, TUserDtoKey>> and Task<TRolesDto<TRoleDto, TRoleDtoKey>> respectively

        public async Task<UsersDto<TUserDto, TUserDtoKey>> GetUsersAsync(string search, int page = 1, int pageSize = 10)
        {
            var pagedList = await _identityRepository.GetUsersAsync(search, page, pageSize);
            var usersDto = _mapper.Map<UsersDto<TUserDto, TUserDtoKey>>(pagedList);

            return usersDto;
        }

        public async Task<RolesDto<TRoleDto, TRoleDtoKey>> GetRolesAsync(string search, int page = 1, int pageSize = 10)
        {
            PagedList<TRole> pagedList = await _identityRepository.GetRolesAsync(search, page, pageSize);
            var rolesDto = _mapper.Map<RolesDto<TRoleDto, TRoleDtoKey>>(pagedList);

            return rolesDto;
        }

[skoruba]

@pbros - Good point, I will change it. 👍
Thank you!

[skoruba]

Done on dev branch.
Thank you @pbros

[skoruba]

Done on master. Please check new release.
Thanks!