Correction in the implementation of JSON-RPC and added processing of simple CORS requests in dap_http_simple.
The following changes have been made:
- Added a greeting output for a simple GET request.
- The signature of the callback function for handling the JSON-RPC request has been changed, now it will accept the method name as the third parameter.
- Changed the function signature of the btc_rpc module.
- Fixed error clean information from JSON request.
- Added temporary implementation of handling a simple CORS request.