Clean up schema discovery and add Principal in TS SDK

[afsalthaj]

Fixes #2551
Fixes #2613

While adding support of principal, i made a lot of cleanups. While certain parts was just code moving aaround, certain other parts mainy schema module was heavily refactored. And then it was much easier to add support for Principal.

Also note that, I couldn't do all cleaning (so certain code that was moved around might still look to be something that can be improved). Allow me to do follow ups for that, because it took a lot of time for me to figure out how i broke integration tests: https://github.com/golemcloud/golem/actions?query=is%3Afailure+branch%3Afeature_2551 , and finally it is green.

Apart from the whole schema module being refactored, the following specific clean ups was done.

• There was TypeDetails, TypeInfoInternal which are internal representation of a type (a method parameter type, constructor parameter type or the return type). Removing TypeDetails just led to a few changes. We need only 1 internal type.
• TypeInfoInternal now holds WitType as well, which makes it easy to find the ElementSchema, or DataSchema for any multimodal type or generally any return type - makes things easy to comprehend.
• Finally, start a schema package and separate out functions that's dedicated to constructor, method input and method output.
• Move http module inside internal.
• This leads to simply adding 1 more variant to just TypeInfoInternal called Principal and work backwards

[afsalthaj]

There are other bugs which is already fixed. The main one was #2613 . the last two things spotted is:

1. For multimodal, more than 1 parameter can exist as far as the rest is Principal.
2. Handle constructor parameters or method parameters with ? during auto injection

[afsalthaj]

Not sure why this is showing, all files in http should have been a file renaming.

[afsalthaj]

It was getting overly complicated, hence refactored the code along with re-organisation

[afsalthaj]

1 more integration test failure to fix which is

    async funOptionalQMark(param1: string, param2?: number, param3?: string) {
        return self.barAgent(param1, param2, param3)
    }

After auto injection, the RPC is failing for these question mark parameters.

[afsalthaj]

we mapped data value elements before. This time we are mapping parameter types and then lookup data value elements. This is an important change to get errors

[afsalthaj]

While adding support of principal, i made a lot of cleanups. While certain parts was just code moving aaround, certain other parts mainy schema module was heavily refactored. And then it was much easier to add support for Principal.

Also note that, I couldn't do all cleaning (certain bits within schema module too, and some code that you see was just code moved around and might still look to be something that can be improved). Allow me to do follow ups for that, because it took a lot of time for me to figure out how i broke integration tests - to finally - make it green. https://github.com/golemcloud/golem/actions?query=is%3Afailure+branch%3Afeature_2551 , and finally it is green.

[afsalthaj]

We can do something about it - to be more clearer. but I have already done a lot of cleanups elsewhere to avoid these kind of situations to add Principal feature, and can clean ups in follow up PR.