refactor: dont compress until concatenated, messes up tabix

feat: updates for convert_cache.pl

feat: updates to handler

feat: tweaks to TabixCache.pm

fix: copy custom FastaSequence.pm to override file exists checks for FASTA files

docs: add instructions for updating lambda

refactor: change convert_cache script to write temporary files per chromosome

feat: fetch files from s3 using aws cli

feat: update to use TabixCache plugin

Create docker-publish.yml

fix: get file path properly

feat: initial checkin of cache convert script and plugin to handle

feat: add basic instructions for copying VEP data to S3

feat: update handler to support loading config and flags from payload

feat: initial checkin