[PLAT-3296] Refactor: rename ExternalSchemes.redCode() to markItRedCode()
[PLAT-3296] Add unit test for MarkItRedcode creation in ExternalSchemes
[PLAT-3296] Add json and html template for CDSOption security
[PLAT-3296] Add ability to provide json representation of CDSOption to securities web resources
[PLAT-3296] Provide ftl template for CDSOption security type