Fix object parser

[d0rich]

@dvlkv

This PR is created to fix issues like #10, tact-lang/tact#115 while getting responses with complex structures created via Tact.

Mostly I've covered parser code with types and then fixed several issues connected with incorrect return statements. Now it works fine on my internal repository.

[anton-trunov]

Is this existing PR related? #43

[d0rich]

Is this existing PR related? #43

Yes, it is a related issue. I just haven't added lists parsing support, because I don't have any example of server responses with lists.

[d0rich]

@dvlkv @anton-trunov it would be nice if somebody from the TON would provide examples of the TVM serialized objects containing all the possible data types inside for the tests.

[aSpite]

I have already sent a PR to address this issue. It is not necessary to add a new List object, because @ton/core only works with tuples. It is better to do as in PR 43

[d0rich]

@dvlkv my tact-based project still doesn't work with this library from the box. I still need to create a patch for the package using code from this PR.

I've rebased my suggestion on the latest version available and changed the source file itself. Hope, it will help you understand what is the issue more clearly.

I only extracted types to the new util file. I think, it is better than adding all these types to the TonClient.ts. Furthermore, I would not recommend deleting them, as it exactly the thing, that helped me find reason of failures, and it can help avoid new ones in the future.