Existing feature "sync create" is to sync single resource-type
to single target region i.e one resource off one resource-type
to one region.
Issue with "sync create":
Kingbird cannot sync more than one resource-type to multiple
target regions in a single request.
This commit from kingbird client is to enhance the existing
"sync create" job.
Working of sync template feature:
User have to provide a input file with .yaml or .yml or .json extension.
This input file should consists of
->resource-type
->resources
->source_region
->target_region.
Added testcases for the same.
Change-Id: I5fb0e4619b20201585e5398013ba25219e24dc80