Add an organ system validator that checks if each phenopacket or family/cohort member have annotation for provided organ system represented by a top-level HPO term (e.g. Abnormality of limbs). The annotation comprises either one or more observed descendants (e.g. Arachnodactyly), or excluded top-level HPO term (NOT Abnormality of limbs).
Addresses the last point of #73
Add an organ system validator that checks if each phenopacket or family/cohort member have annotation for provided organ system represented by a top-level HPO term (e.g. Abnormality of limbs). The annotation comprises either one or more observed descendants (e.g. Arachnodactyly), or excluded top-level HPO term (NOT Abnormality of limbs).