Add the new Encounter IG to HDP project and publish on simplifier

[nir-r]

@amosref Pls add the new Encounter IG to HDP project

Not found in the simplifier project
https://simplifier.net/search?project=hdp-il&q=il-hdp-encounter-hierarchy-ig

Not found on the Repo
https://github.com/search?q=repo%3Aamosref%2FHDP%20il-hdp-encounter-hierarchy-ig&type=code

[nir-r]

@amosref Hi

Can you guesstimate when this will be implemented?
Seems like a minor change with high impact on users.

CC @nir-r