Fix parsing for theories, specifications and user guides beginning with empty line/comment #180
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janheuer
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Fixes #127
Adds tests for theories, specifications and user guides that begin with empty lines or comments. For theories this is only a problem if the first formula has a prefix, i.e. negation or quantification. For programs I did not find any cases where an empty line or comment as the beginning leads to an error.
Modifying the respective rule by adding
(WHITESPACE | COMMENT)? ~as a prefix fixes this issue.