Deprecate searcher.py in favor of the Go client?

[sylvinus]

Still not sure if we should entirely remove searcher.py

It's only used in tests. If we remove it we'd have to make at least the cosr-back tests depend on the cosr-front code.

Pros:

• Less code duplication/maintenance
• Less risk of subtle diffs that would make debugging hard.

Cons:

• More complex setup
• Unnatural dependency between both projects
• One more language to understand for people willing to contribute

[sylvinus]

Actually I find it somewhat practical and maybe even beneficial to iterate on the Python code, break tests, tweak things, and then freeze the code in the Go client. It is a bit more work, but not that bad.

[chris-heney]

I agree with interactive dev/design principles.