Add context rules/triggers from medspacy Dutch / Erasmus

[vmenger]

Describe the feature
Erasmus have released a new set of trigger terms recently:

• Repo: https://www.medrxiv.org/content/10.1101/2024.03.14.24304289v1.full
• In medspacy: https://github.com/medspacy/medspacy/blob/master/resources/nl/context_rules.json

Would be nice to merge them here in clinlp if at all possible.

A use case for the feature
Any use case that uses context algorithm

Would you like to be involved in development?
Yes

Additional context
N/a

[vmenger]

Contacted @tomseinen to ask whether they'd be interested in this idea.