Fix AddClasses method to take only public classes not private

[AntonyNET]

Documentation of method IImplementationTypeSelector.AddClasses(Action action) says that "Adds all public, non-abstract classes from the selected assemblies that" but in implementation this method takes private classes too:
AddClasses(action, publicOnly: false).

Sync code with documentation.

[khellang]

Hmm. It's really unfortunate that the different overloads have different behaviors. No clue how it ended up that way. But this is a pretty big breaking change, as code that previously resolved fine, would now start throwing. I need to consider this for a bit 😅

[khellang]

Let's see how it works out 😅 Thanks @AntonyNET!

[alfeg]

Ouch. Quite a breaking one.
Hopefuly fast to fix.

[bensmind]

Should have been a change to the documentation to match code rather than the code changing to match documentation. This is a very large breaking change that got included on a minor release.

[khellang]

Yeah, if it turns out this will break a lot of people, we might want to release it as a major version instead

[khellang]

Hopefuly fast to fix.

It's VERY fast to fix; just pass publicOnly: false explicitly.

[sailro]

It is very fast to fix indeed, but broke everything on our side unfortunately (before we figure out the root cause).

And fully agree with:
#238 (comment)

[khellang]

See #244