Is your feature request related to a problem? Please describe.
This feature is nice to have as tools could use it and build on it.
Currently, we support encoding &. decoding with ABI:
JSC types -> calldata
responsedata -> JSC types

Describe the solution you'd like
It would also be nice to have a calldata decoder:
calldata -> JSC types
and api data encoder:
JSC types -> responsedata
Internally we do not need such a flow other than maybe adding additional validation options/ testing,
but this could help

1. case: describe calldata parameters for various explorers &. tools.
2. case: encode response for rpc node & tools.

Additional context
With ABI this would complete a circle of data conversion as so one could do:
calldata -> JSC types -> responsedata
We could improve the test with excepted results for echo test methods