Add ability to test HL7 extension with multiple HAPI implementations

[jamesnetherton]

I deliberately restricted the tests to use only a single HAPI impl as adding multiple libs slows down the native build, as a lot of stuff is required to be registered for reflection.

It could be beneficial to be able to test with multiple HAPI dependencies on the classpath, so we could perhaps have that under a maven / Quarkus test profile which could be activated manually if required.

[ppalaga]

I wonder whether the component could not be split per implementation (or in some other way) either in Camel or in Camel Quarkus?

[jamesnetherton]

I wonder whether the component could not be split per implementation (or in some other way) either in Camel or in Camel Quarkus?

Not sure that's feasible / desirable given that there are so many HAPI versions and new ones will eventually get added.

In reality, it could be that users will never have multiple HAPI impls on the classpath. But since it's possible, we should probably test it...