2.8.0

• Changed Split to correctly handle unions of strings as the delimiter (e.g. '-' | '_')
• Added NonEmptyString type
• Renamed Filter to FilterOut to resolve confusion
• Added actual Filter type
• Added Some, Every, and FromKeyed array types
• Added FlattenKeys type
• Changed GetByString to be more robust
• Changed type math tests to be less precise because of TS depth limits
• Enabled isolatedModules