Initial version php Query API PHP Client

[ujovlado]

Jira: https://keboola.atlassian.net/browse/PAT-696

Changes:

• Kick-off initial implementation of Query API PHP client. This client will be used in AI service.

---

Details

• Client is dummy and does not do much right know (v0.1.0)
• Storage API client is required only in dev environment (so I can create Workspace, Branch, etc.)
• We released new version of Service Client, which is not needed at the end 😇 Add Query Service to Service Client platform-libraries#412
• Env vars are simple, you just need to specify Storage API URL+token and Queue API Service URL (this enables various combinations)
• There are 2 functional tests files - one for testing basic stuff, another one for more advanced.
• Query Service is not 100% stable yet, we'll be updating tests and adding new functionality
• There's also middleware adding required headers (everywhere except for health-check)

[MiroCillik]

Nice kick-off 💪

I would use service-client and HOSTNAME_SUFFIX for obtaining the service(s) url.

I will approve once the service is working and the tests are passing :)

[MiroCillik]

OK, len ten jeden test je tam zbytony