Add option to ignore all virtual members

[Cyaminthe]

Similarly to IncludeCompilerGeneratedMembers, adds optional metadata IncludeVirtualMembers.
When it is set to false, all virtual members in the assembly are exempt from publicizing (unless specified explicitly).
The default value is true, to not alter previously expected behaviour.

[krafs]

Thanks for the PR! Contributors are always welcome :)

Besides a couple of minor comments, I'd still like some kind of test for this. I realize that the existing tests are bulky and hard to read, but they are better than nothing. If you can add a similar test for IncludeVirtualMembers (e.g. adapting the test for CompilerGeneratedMembers) I'd feel better approving the PR.

Again - thanks for helping out!

[Cyaminthe]

Besides a couple of minor comments, I'd still like some kind of test for this. I realize that the existing tests are bulky and hard to read, but they are better than nothing. If you can add a similar test for IncludeVirtualMembers (e.g. adapting the test for CompilerGeneratedMembers) I'd feel better approving the PR.

Sure thing. Added a test (and fixed the minor comments).

[krafs]

Thanks! I'll try to release soon.