Make container config optional in Container constructor

[vjik]

No description provided.

[samdark]

What's the use case for a container without config?

[vjik]

What's the use case for a container without config?

Unlikely, container without config makes sense in application code, but this use case is found in tests: https://github.com/search?q=org%3Ayiisoft+%22new+Container%28ContainerConfig%3A%3Acreate%28%29%29%22&type=code

[samdark]

That doesn't look too bad to me in tests. Let's have config mandatory.

[vjik]

What is the point of passing an empty configuration if the configuration is empty by default.

[samdark]

Alright. It doesn't hurt.