Replace examples in comments with documented unittests

[andrej-mitrovic-sociomantic]

For example:

ocean/src/ocean/io/stream/Lines.d

Line 49 in 59c3705

auto lines = new Lines!(char);

Lines is no longer templated, so that example code does not compile. We should use documented unittests wherever possible in place of inline comment code.

[gavin-norman-sociomantic]

I took the liberty of changing the issue title. Does the new title reflect your intention?

[andrej-mitrovic-sociomantic]

Yes! Thanks.