MB-28967: Move configuration code into own static library
MB-28967: Move configuration code into own static library

The ep-engine configuration code - which includes code generated at
build time - is needed by CouchRocks. As such, to be able to express a
dependancy between CouchRocks and the config code, move the ep-engine
configuration code into a static library.

Change-Id: I2851569ea870edf4b4adaa7aa3a3037e55d44447
Reviewed-on: http://review.couchbase.org/91827
Reviewed-by: Tim Bradgate <f1a26ee65f021cb7d82b83dfb09abf144d3eb64f@couchbase.com>
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine