[#2230] Add Totals row to Gross Profit report
Delete events linked with employee on deletion of Employee
[#2219] Re-Order Level Validation: Warehouse cannot have two reorders for same item
POS feature #2305
Required modifications done
Fix Error message, add account_type to 'inventories' in Chart Of Acc.
Merge pull request #2409 from ankitjavalkarwork/fixbomerror

Fix Error message, add account_type to 'inventories' in Chart Of Acc.
Merge pull request #2401 from ankitjavalkarwork/fix2219

[#2219] Re-Order Level Validation: Warehouse cannot have two reorders for same item
Merge pull request #2398 from ankitjavalkarwork/fix2179

Delete events linked with employee on deletion of Employee
Merge pull request #2395 from ankitjavalkarwork/fix2230

[#2230] Add Totals row to Gross Profit report
Merge pull request #2383 from neilLasrado/pos

POS feature #2305
Fixes for standard chart of accounts
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