InstrumentList is missing from ContextTypes

[bingenito]

Minor Issue

InstrumentList = 'fdc3.instrumentList' is missing from ContextTypes enum. ContactList exists as precedent.

Area of Issue

[ ] App Directory
[ ] API
[x] Context Data
[ ] Intents
[ ] Use Cases
[ ] Other

[kriswest]

@bingenito Raised a PR to add the missing type. Will require a release of the NPM module if you are using it from there. As it's an omission it could probably be cherrypicked into a release a 1.2.* release if you need it.