Major reorg, extended ElementalDB, theoretically supports multiple samples

New dependcy: Elemental, annotate now takes optional
sample_id/group_id, new SQL schema with separate data-tables for
coverage annotations, script: chanjo-autopilot (without ".py")
Generalized data table columns for parent ref
Small bug fixes - new autopilot working!

element_id corrections, added print args back to "autopilot"
Finished feature multi-members.