Medium: oracle: Create profile for OCFMON user (bnc#850589)

The OCFMON user needs to have unlimited password
expiry, otherwise the agent will fail if the
password expires. Create a profile OCFMONPROFILE
used by the OCFMON user with unlimited password
expiry.

Detect a previously created OCFMON user and alter
its profile to the new OCFMONPROFILE.
High: oracle: Make monitoring user configurable (bnc#859683)

Add parameters for monitoring user and password.
This gives the administrator full control over
password expiration and naming restrictions.