Support multiple delete_when condition in delete_entries processor

[kkondaka]

Is your feature request related to a problem? Please describe.
Allow multiple keys to be deleted under different conditions when using delete_entries processor

Describe the solution you'd like
Modify delete_entries processor to support this new configuration that allows multiple with_keys and delete_when configurations like shown below. The existing configuration is still supported. This is new config under entries needs to be added.

processor:
   - delete_entries:
        entries : 
           - with_keys: ["key1", "key2"]
              delete_when : "condition1"
           - with_keys : ["key3", "key4"]
              delete_when : "condition2"
           - with_keys : ["key5", "key6", "key7"]
              delete_when : "condition3"

Describe alternatives you've considered (Optional)
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[niketan16]

I want to work on this.