LIDO to EDM Mapping V 1.0

User mapping rules processing.
LIDO record(s) searching
EDM record(s) creation
User interaction with the service has been changed. Now, users will
receive a receipt (request_id) on submission of a mapping and
transformation request. This id can be used to check the status of the
request and fetch the resulted edm records.

This commit also includes example mapping rules in
examples/mappingrules.csv file.