Add a jOOQ / JMH benchmark stub example project

[lukaseder]

In order to assess the SQL performance of two alternative jOOQ / SQL queries, it would be great to be able to use a JMH benchmark stub that compares two standard jOOQ queries, where users could easily copy-paste their own queries instead.

There would be several benchmarking modes:

• Running the benchmark loops in Java / JDBC
• Running the benchmark loops in some procedural language

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See also:
http://stackoverflow.com/questions/43099226/how-to-make-jooq-to-use-arrays-in-the-in-clause

[lukaseder]

Won't fix