Support for more dynamic declaration of country-specific parameters in ETSI records #78
Description
A basic example would be the national-HI1-ASN1Parameters in HI1 operations messages.
Each country is going to have different possible structures that may need to be included in here and we cannot realistically hope to support everyone right away. Of course, nobody appears to publicly document what their specific country's agencies expect to be in here, so that makes it even harder.
Ideally, we would implement this as some sort of runtime loadable plugin system, but we cannot necessarily guarantee that all of the information required will be available when constructing a message. Some fields may be static, which is easier, or they may be derived from the properties of an intercept, agency, etc.
All in all, this could be a very tricky problem and is going to require a lot of thought.