Added user request limits, We can now set the limit for a user.

src/Ombi.Store/Repository/IRepository.cs

@@ -17,6 +17,7 @@ namespace Ombi.Store.Repository
         Task DeleteRange(IEnumerable<T> req);
         Task Delete(T request);
         Task<int> SaveChangesAsync();
+        Task<T> Add(T content);
 
         IIncludableQueryable<TEntity, TProperty> Include<TEntity, TProperty>(
             IQueryable<TEntity> source, Expression<Func<TEntity, TProperty>> navigationPropertyPath)