S-expression parser

[ForNeVeR]

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I think we'll need a simple C#-based s-expression parser.

@hagane, wasn't your decision to purge all the pre-existing code somewhat premature? There were ol' good Reader and Symbol implementations that can be used even today - if you weren't brutally deleted them.

[hagane]

Nah. While being quite fine on their own, Reader and Symbol weren't really up to the task. Concerning the sexp reader, that's where I think we should start, especially seeing as it can be easily covered by tests and should not depend on other parts.

[ForNeVeR]

I'm on it.