Move all L1-related repositories to github

Reasons for change

• centaurusa is going away, and we need to maintain "live" ("modifiable") versions of all L1Proc packages
• several L1-related packages are still using stag, which is: a) not actively maintained c) not available on s3df
• github has modern gui, tools, etc. making maintenance a lot easier down the line (branching/versioning/etc.)

CCB Jira: SSC-462 - Getting issue details... STATUS

Test Procedure

All packages listed below are available on github, and can be downloaded and compiled on S3DF 

Rollback procedure

No rollback is planned. Additionally, this change will become irreversible once centaurusa is retired

Migration workflow

• Goal: move all individual L1 packages to the fermi-LAT github space: https://github.com/fermi-lat
• Method: use these instructions by JimC: https://github.com/jchiang87/asp_migration/tree/main/cvs_to_git
• On the github side (after migration): make all packages public, but protect tags and branches

Why make all packages public

• this is consistent with Fermi-LAT practice
• authentication to a git server via container is not trivial
• increase transparency, increment bus-number from one  

Archiving "umbrella" packages

• L1 uses two "umbrella" packages:
  • svac (contains: findGaps, L1Pipeline, Monitor, TestReport)
  • dataMonitoring (contains: Common, FastMon, AlarmsCfg, etc.)

• this does not translate well to the flat structure of our gitlab repository
• additionally, both packages contain lots of obsolete code
• plan: migrate those packages as a whole to github, and archive them

• svac (contains: findGaps, L1Pipeline, Monitor, TestReport) → archived to svac
• dataMonitoring (contains: Common, FastMon, AlarmsCfg, etc.) → archived to dataMonitoring

Individual repositories that were migrated

• L1Pipeline (single package, previously in svac) → migrated to L1Pipeline
• findGaps (single package, previously in svac) → migrated to findGaps
• TestReport (single package, previously in svac) → migrated to TestReport
• Monitor (single package, previously in svac) → migrated to Monitor
• pipelineDatasets (single package, previously under users/richard) → migrated to pipelineDatasets
• evtClassDefs (single package, may be needed needed by others) → migrated to evtClassDefs

• GPLtools (single package, actively being modified for s3df use) → migrated to GPLtools

• Common (single package, previously in dataMonitoring) → migrated to Common
• DigiReconCalMeritCfg (single package, previously in dataMonitoring) → migrated to DigiReconCalMeritCfg
• FastMon (single package, previously in dataMonitoring) → migrated to FastMon
• FastMonCfg (single package, previously in dataMonitoring) → migrated to FastMonCfg
• IGRF (single package, previously in dataMonitoring) → migrated to IGRF

Repository to be migrated at a later date

• AlarmsCfg (single package, currently in dataMonitoring → not migrated yet (see SSC-461 - Getting issue details... STATUS )