com.snowplowanalytics.iglu.schemaddl.migrations.SchemaList
Create new segment with items after index
Create segments from all possible combinations of NonEmptyList(source,between,destination),
Create SchemaListSegment from schemas in current SchemaListFull
Always belong to the same vendor/name/model triple, always have at least two elements: head (initial x-0-0 schema) and latest schema