Add first pass at docs tester
Add first pass at docs tester

Currently verifies that every opcode in docs/ops.markdown
has a corresponding entry in nqp-jvm (and vice versa).

cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp,cygx/nqp