Changes required for upgrading CQF Ruler

[aeyates]

Two changes are needed to the hook request to work with CQF Ruler 0.5.1 and above.

1. The property "applyCql" is no longer valid. It can be removed at any time, as its removal doesn't break 0.5.0.
2. The syntax for fhirAuthorization has changed. I have logged this as a bug with CQF Ruler. But in the event that it isn't fixed soon, the workaround will be to modify hookRequest.mustache like this:

"access_token": "Bearer {{bearerToken}}",
"token_type": "Authorization",

Note that this would be a breaking change for 0.5.0, and it does not meet the CDS Hooks specification, so we should only make this change if we need to upgrade before a fix is in place.

[aeyates]

I went ahead and committed the first change and tested in dev. I've also updated the CQF Ruler ticket with a potential fix.