Make sure clientName is being passed to fs-request instances

[justincy]

The clientName property, as enabled by fs-api-aware mixin, allows for elements to specify which SDK client instance should be used. We need to make sure the clientName property of fs-request instances is being set. I believe that in most cases it's not being set.

Explicit usage

clientName must be bound; should use one-way binding

• [x] fs-pedigree
• [x] fs-contributor
• [x] fs-person-portrait
• [x] fs-date
• [x] fs-person-families
• [x] fs-place
• [x] fs-add-person
• [x] fs-user-history
• [x] fs-person-sources
• [x] fs-attribution

Dynamic fs-request usage

clientName must be set in JS

• [x] fs-fact
• [x] fs-user-mixin
• [x] fs-person-mixin
• [x] fs-person-name
• [x] fs-add-person
• [x] fs-person-gender