feat: add noop ceramic-olap binary (#482)

* feat: add noop ceramic-olap binary

The ceramic-olap binary copies verbatim some setup code from ceramic-one
re tracing/logging/metrics. Eventually this may move back into the
ceramic-one binary or we can find a way to make it generic and reuse.
Given this is only the first copy of the code I don't think we should
work to make it generic yet. Not until we either decide this is the long
term home for the ceramic-olap binary or have a third binary we want to
have a similar setup.

This binary does nothing yet except start tracing/logging/metrics and
then wait for a signal to shutdown gracefully.

* fix: add code owners for new olap dir

* fix: use datafusion

CODEOWNERS

@@ -20,3 +20,4 @@
 /recon/             @AaronGoldman   @ceramicnetwork/eng-reviewers
 /service/           @dav1do         @ceramicnetwork/eng-reviewers
 /store/             @dav1do         @ceramicnetwork/eng-reviewers
+/olap/              @nathanielc     @ceramicnetwork/eng-reviewers