adding pdq db creation and data ingestion features

[kopardev]

Changes

This will will include scripts to:

• create db schema for pdq data ingestion
• data ingestion

Issues

#99
#101

PR Checklist

(Strikethrough any points that are not applicable.)

• This comment contains a description of changes with justifications, with any relevant issues linked.
• Update docs if there are any API changes.
• Update CHANGELOG.md with a short description of any user-facing changes and reference the PR number. Guidelines: https://keepachangelog.com/en/1.1.0/

[kopardev]

schema diagram:

ref:https://dbdiagram.io/d/spacesavers2_pdb_db-664121069e85a46d55a36575

[kopardev]

added create_and_append_db.sh script to created db with all data up-to-date.

• see file /data/CCBR_Pipeliner/userdata/spacesavers2_pdq
• file /data/CCBR_Pipeliner/userdata/spacesavers2_pdq is only 104K vs all TSV and TSV.gz files accounting for 13M of disc-space ... surely saving a lot of disk space with sqlite3 db... improved perfomance.