[Enhancement] Improve migration tool

[To-om]

Request Type

Enhancement

Description

• Don't run integrity checks at the end of migration by default (unless the parameter -k or --integrity-checks is present)
• Migrate dashboards
• Fix totals (was divided by 1000)
• Don't create initial values twice
• Don't truncate custom fields ([Bug]- Migration from Hive 3.4.4 to Hive 4.1.17 not working #2331)
• Fix detection of single type in elasticsearch ([Bug]- Migration from Hive 3.4.4 to Hive 4.1.17 not working #2331)