feat(connector-corda): add enterprise flavor support

[petermetz]

Is your feature request related to a problem? Please describe.

Right now what we have for the Corda connector is all based on the open source (OS) flavor, but we need to support the enterprise one as well.

Describe the solution you'd like

Tests verifying that the connector works the same way for both OS (existing tests) and enterprise (tests to be added, missing things to be implemented)

Describe alternatives you've considered

Considered for a moment to have a separate connector for Corda Enterprise, but quickly discarded that idea because my hope is that on the technical level they are both the same and Enterprise just comes with additional bells and whistles but it does not break compatibility with the OS edition in the lower level details such as how flows can be invoked, etc.

Additional context

This issue could be as easy as just adding a new AIO image with the enterprise build and then copying the tests to use that image. If that all works then that's all that needed to be done. On the other hand it has the potential to blow up in complexity based on the exact technical differences between the OS and Enterprise editions.

cc: @takeutak @sfuji822 @hartm @jonathan-m-hamilton @AzaharaC @jordigiam @kikoncuo @petermetz @arnab-roy

[jagpreetsinghsasan]

At the moment, in the enterprise corda, the latest is v1.5 which still uses the old corda v4 jars. Thus we need to wait till the enterprise support for corda v5 is in place.
I will contact the Corda support team and post the official update from them here