Add a native JSON linter.

Summary:
Ref T5297. Utilize PhutilJSONParser to create a native JSON linter (native in that it is pure PHP with no external dependencies).

Since JsonLint is literally a PHP port of jsonlint, I figured that we should also deprecate ArcanistJSONLintLinter. ArcanistJSONLinter should behave identically to ArcanistJSONLintLinter.

Depends on D9634.

Test Plan: Ran the ArcanistJSONLintLinter unit tests.

Reviewers: Blessed Reviewers, epriestley

Reviewed By: Blessed Reviewers, epriestley

Subscribers: epriestley, Korvin

Maniphest Tasks: T5297

Differential Revision: https://secure.phabricator.com/D9628