KYLIN-4897 Add table snapshot and global dictionary cleaning in Stora…

[zhangayqian]

…geCleanupJob

Proposed changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
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Checklist

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• I have create an issue on Kylin's jira, and have described the bug/feature there in detail
• Commit messages in my PR start with the related jira ID, like "KYLIN-0000 Make Kylin project open-source"
• Compiling and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
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[zhangayqian]

Test Evidence

bin/kylin.sh org.apache.kylin.tool.StorageCleanupJob

• cleanup has not been modified for more than 12 hours and unused global dictionary
  
  

• cleanup has not been modified for more than 12 hours and unused table snapshot
  

• cleanup has not been modified for more than 12 hours and unused segment parquet file
  

bin/kylin.sh org.apache.kylin.tool.StorageCleanupJob --cleanupTableSnapshot false -cleanupThreshold 48

• Just cleanup has not been modified for more than 48 hours and unused segment parquet file and global dictionary, table snapshot would not be cleanup
  

[lgtm-com]

This pull request introduces 1 alert and fixes 1 when merging 3447859 into 2bcdb62 - view on LGTM.com

new alerts:

• 1 for Result of multiplication cast to wider type

fixed alerts:

• 1 for Dereferenced variable may be null