Fixes tempest tests to fit DynamoDB API

Adds ResourseInUseException for duplicate table creating.
Changes logic of verifying exception messages and error codes.

Partially implements: bp tempest-dynamo-db-api-fit
Change-Id: I7dace4e3f584188fda02755304c08a460c46e07c
Merge "Fixes tempest tests to fit DynamoDB API"