Use LookML duration instead of hardcoded date_diff and datetime_deff

[cjyoos]

Hello Looker friends!
Don't know if this repo is still maintained. I got a bit discouraged from using the marketplace when I realized that there is no way to deploy marketplace to dev. I.e. as soon as you load marketplace, it is exposed to everyone - which seems goofy. So I am using this block so I can control it.

It would be rad to update the dimensions in zendesk_block.view.lkml that hardcode sql days_to__ to use looker dimension groups.
Specifically:
dimension_group: to_solve {
type: duration
intervals: [day, hour, minute]
sql_start: ${created_raw} ;;
sql_end: ${ticket_history_facts.solved_date} ;;
}

dimension_group: to_first_response {
type: duration
intervals: [day, hour, minute]
sql_start: ${created_raw} ;;
sql_end: ${ticket_history_facts.first_response_date} ;;
}

Abstraction Baby!