phosphor-ldap-conf: add support for validation of parameters

Validate LDAP Server's URI, BaseDN and BindBN.

Change-Id: If754e17c238069e04c9e1e8735a28d54dbf221cb
TODO: Unit tests will be added in subsequent commits.
Signed-off-by: Nagaraju Goruganti <ngorugan@in.ibm.com>
2 files changed