Expand the ModelInfo to support more metadata associated with a model, as described in this tooling ticket:

Add short, definition, and comment content to ModelInfo · Issue #52 · cqframework/cqf-tooling (github.com)

Specifically:

label - A string user-friendly label for the element
definition - A markdown definition of the element
comment - A markdown comment for the element
bindingStrength - required,extensible,preferred,example
bindingValueSet - url of a value set specifying possible values
constraint - ConstraintInfo { name, severity (error|warning), expression (CQL w/o retrieves, parameterized by Value of the type of the element), message }
mustSupport - A Boolean indicator of mustSupport