Incorrect results with "not" as first Check condition

[ASL-rmarshall]

If the first check condition is not, it is ignored - as in:

Check:
  not:
   ...

Example rule with not first that reports incorrect, reversed results: DDF00015 - does not work.yaml
Example rule with redundant all first that reports correct results: DDF00015 - works.yaml

Test datasets:

• Positive: regression-test-coreid-DDF00015-positive.json
• Negative: regression-test-coreid-DDF00015-negative.json

It is sometimes easier to express a rule as a negation of the correct conditions, but this this currently not possible without inserting an unneeded all as the first condition.

[Note that these rules use the updated codelist_terms operation - #1326]