KIJI-797. AspectJ for profiling.

Measures time spent in MetaTable, SchemaTable accesses, encoding and
decoding cells and serializes these to a file when any kiji Tool is used.
OP-27839. Set version name to 1.1.0-opower-1-profiling on this profiling branch.
Merge pull request #7 from alexandre-normand/opower-1.1.0-profiling

opower-1.1.0 with profiling