Default Node Release Run Time

#### Feature Request Description
The ability to specify a default Run Time for the Node Release task along with the maximum for the task.


#### Describe Preferred Solution
A field in the Job Scheduler configuration to specify the default node release run time for jobs that have not already specified it.

#### Describe Alternatives Considered
Populating the field via the submission filter.

#### Additional Context
Currently the field is automatically populated to the maximum value and this can be confusing for users who expect their job to be able to run that extra time but end up failing because the cluster kills their main task in order to run Node Release.