fix Mailbox migration patch
Merge pull request #2418 from pdvyas/fix-patch

fix Mailbox migration patch
Operations added in Production Order DocType
Auto-Fetch added to operations in Production Order DocType
made operations in production order read-only
capacity & duration of cycle added to workstation
workstation operation timings added
operation master added, Time log added
Time Log Fixed
Test Records added to Production Order
Test Recorde for over Production Time Log added