Support list/enumrable of complex types for ABP dynamic/static c# proxies on GET requests

Currently, it can not properly convert these kind of objects to query string parameters. Example method parameter:

// APP SERVICE METHOD:

public async Task<PagedResultDto<Dictionary<string, object?>>> GetListAsync(DynamicEntityListRequestDto input)

// METHOD PARAM

public class DynamicEntityListRequestDto : PagedResultRequestDto
{
    public string EntityName { get; set; }
    
    public List<DynamicQuerySortArgs>? Sortings { get; set; }
}

public class DynamicQuerySortArgs
{
    public string PropertyName { get; set; }
    public bool IsDescending { get; set; }
}

Now the request is made like that:

https://localhost:44337/api/app/dynamic-entity?
EntityName=LowCodeDemo.Customers.Customer&
Sortings[0]=LowCodeDemo.LowCode.DynamicQuerySortArgs&
SkipCount=0&MaxResultCount=10&api-version=1.0

So, it makes ToString() for the LowCodeDemo.LowCode.DynamicQuerySortArgs object, but it should send its values properly.

Start by reproducing the dynamic/static C# proxy GET request with the shown DynamicEntityListRequestDto and inspect how its query string is generated. Trace the GET-request serialization entry point for list or enumerable complex types; done means Sortings includes each object's property values instead of its ToString() result.