OPHASPA-339: Do not allow access origin in production

Sets corsfilters mode value by utilizing spring's @Value annotation.
Defaults to development mode which allows access from any origin.
Possible modes are PRODUCTION and DEVELOPMENT.
OPHASPA-339: Clean and format test context
OPHASPA-339: Provide default value for mode
OPHASPA-339: allowed domains are configurable

Defaults to hard-coded domain in production mode otherwise.