Use a SQL simulation instead of sqlite

[phihag]

Currently, vulnsrv uses an in-memory sqlite, which is not parallelizable and may contain security holes. Instead, vulnsrv should include a rudimentary SQL parser that only supports SELECTs.

SELECT\w+([a-zA-Z]+(\w*,\w*[a-zA-Z]+)*)\w+FROM\w+([a-zA-z]+)\w+WHERE\w+

should be a starting point. This should probably developed in its own project.