[feature] add --format=json to conan cache path

[jcar87]

What is your suggestion?

I would like for conan to be able to give me a machine readable file, rather than having to pipe the output of the conan cache path command.

There's nothing wrong with piping, but this makes life slightly easier on a CI system that needs to support both bash syntax and bat/cmd syntax on Windows.

Have you read the CONTRIBUTING guide?

• I've read the CONTRIBUTING guide

[AbrilRBS]

We probably want this extended to conan config home if we end up likeing this idea

[memsharded]

These 2 commands were intended to get the "text" output also valid for automation. So when a command returns a single string (path) as a result, the text in stdout will be equivalent to a potential json output with

{"path": "/result/path"}

Though maybe the line ending in the terminal is disturbing the "text" flow? In that case, sure, I don't oppose to have a json formatter for these commands, good to me