Better control over stdio output from APIs

[bartlomieju]

In some situations we need better control over output coming from different APIs (console.log(), Deno.core.print()). Currently output always goes to stdout or stderr. However, in some contexts we would prefer to output to go somewhere else, eg:

• in REPL we'd like to pipe the output to the editor (Consider switch to reedline crate #13125)
• in upcoming Jupyter integration we'd like to pipe output through kernel to the remote notebook (First class Jupyter notebook integration #13016)
• in Deploy output would be piped to relevant logs page

CC @dsherret @lucacasonato @bnoordhuis

[bartlomieju]

Actually this might already possible by overwriting op_print when required. I will keep this issue open for now.

[bartlomieju]

Not needed, managed to handle that using op middleware.