Parse nested calls (#62)

* Setup skeleton

* Parse nested calls

save progress before removing old indexing method

Save optimized, non-working version, before deleting

Catch mistake of recursion stopping to soon

Rename function to parse calls.

Change name to parse calls
Change let to const

* Move parseCalls, strict return types, extrinsic calls field

Update parseCalls to always accept and return an array

Enforce strict return types


trivial syntax

Add calls field for extrinsics to show all nested calls

* Add `newArgs` field and label Call params


cleanup

* Save before delete most of parseCall

* Correct nested, incorrect top level

* Works parsing all levels of args

* Working but needs fix for finding arg array of calls

* Working

* first try at using args struct

* Add specific stricter types to parseArrayGenericCalls

* Clean up

* remove unused comment

* update