AN-732 WDL 1.1 localizationOptional support

[aednichols]

Description

"What the heck is localization optional?"

When this attribute is set, apply "localization optional" treatment to all files in the task. Previously, a user had to specify it for each file individually.

# WDL 1.1, this PR

runtime {
    localizationOptional: true
    [...]
}

This is an enhancement over the old, nonstandard way that required listing each file:

# Older WDL versions

parameter_meta {
    foo: {
        localization_optional: true
    }
    bar: {
        localization_optional: true
    }
}

The 1.1 spec also has a new way to treat individual files, which I'm saving for the next PR. There are some keys and comments referencing this.

# WDL 1.1, next PR

runtime {
    inputs: object {
        foo: object {
            localizationOptional: true
        }
    }
}

Release Notes Confirmation

CHANGELOG.md

• I updated CHANGELOG.md in this PR
• I assert that this change shouldn't be included in CHANGELOG.md because it doesn't impact community users

Terra Release Notes

• I added a suggested release notes entry in this Jira ticket
• I assert that this change doesn't need Jira release notes because it doesn't impact Terra users

[LizBaldo]

Very clear, thanks for splitting the tickets, it makes this PR a lot easier to review.
Not sure what is going on with the integrations tests though, seems like there are some unrelated infra issues

[LizBaldo]

Left over and forgotten from the papi > Batch move?

[aednichols]

Even better, it's from the PAPIv1 => PAPIv2 transition from about 2018.

Reference message in Broad Slack.

[LizBaldo]

Worth a ticket in the CTM board? This might be a good onboarding ticket for a future dev

[aednichols]

I think I'm going to do this in the next PR, it's too small to document and re-explain later.