libcephsqlite: sqlite interface to RADOS

libcephsqlite: sqlite interface to RADOS

This library provides a SQLite front-end to the RADOS objects.
This effort will help alleviate the restriction on number of key-value pairs
that can be stored in an object.
This interface is a generic one without any constraint on the database
schema either. Library clients can enforce any schema and use SQLite API
to store data in the database backed by RADOS Objects.

Signed-off-by: Milind Changire <mchangir@redhat.com>
(cherry picked from commit 1bc229381af97d684c86a0625d5ab9699889ada4)