package for common test modules

[Toni Sissala]

There is a lot of repetition in test code. It would be nice to have an importable testing package in kuha_common.

• Create dummy records
• Assert two records equal and give meaningful error messages
• HTTP client for end-to-end tests containing common methods and fixtures. (see tests in kuha_client)

[Toni Sissala]

Merge: stable <- prepare 0.5.0, resolve#12

→ <<cset 718f545c2166>>