Issue Description

bool as a success indicator is used inconsistently across the engine. This leads to major discrepancies between the docs and the code.

Suggested Solution

Imho both .NET (true is success) and native (false is no-issue status code) approaches have their pros and cons. I suggest reserving bool itself for .NET-style and introduce a special type to wrap status codes, whenever they are preferred.

const bool done = TryDotNetStyle();
const StatusCode statusCode = TryCodesStyle();
const bool done = TryCodesStyle() == StatusCode::Success;
const bool done = IsSuccess(TryDocesStyle());
// etc.

Additionally, StatusCode wrapper could reserve more bytes so, whenever used, they can express more states.