Ready for re-review: add new epilepsy terms/variable age and neonatal…

…/infantile epilepsy syndrome terms (#8555)

* WIP: add new epilepsy terms

close #8455

* ‘variable age onset epilepsy’ should be reclassified under ‘epilepsy syndrome’

* fix trailing whitespace

* reclassify 'epilepsy of infancy with migrating focal seizures'

* reclassify West syndrome

* reclassify Dravet syndrome

* reclsasify terms under 'neonatal/infantile-onset self-limited epilepsy syndrome'

* add abbreviation synonym type

* revise syn scope

* relabel term

* add dbxref to def

* reclassify 'juvenile myoclonic epilepsy'

* fix qc

* reclassify terms

* exclude from QC

* reclassify terms

* add term tracker item

* reclassify term

* add ORCID

* exclude superclass from reflex epilepsy

* revise labels

* reclassify 'epilepsy with generalized tonic-clonic seizures'

and add syn

* revise excluded sublassOf

* update syn and superclass

* add orcid

* add parent to 'variable-age onset idiopathic generalized epilepsy syndrome'

* add parent to 'variable-age onset focal epilepsy syndrome'

* add parent to familial mesial temporal lobe epilepsy

* add parent to 'variable-age onset combined generalized and focal epilepsy syndrome'

* exclude QC

* revise superclasses for 'juvenile absence epilepsy'