316 configurable autocomplete attribute

[rianfowler]

• remove default false value from all inputs
• sets default to null which renders no autocomplete attribute
• uses props.options.autocomplete when available

todo:

• [x] add unit tests

<Addresses/Closes> #316 <issue/pr link>.

Types of changes

• [x] Bug fix (non-breaking change that fixes an issue)
• [x] New feature (non-breaking change that adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] I've reviewed the guidelines for contributing to this repository.
• [x] I've checked style and lint with npm run lint.
• [x] I built the production version with npm run build.
• [ ] I added tests to verify a bug fix or new functionality.
• [x] All tests pass locally with npm test.
• [ ] My change requires a change to the documentation, and I've updated the documentation accordingly.

[1Copenut]

@rianfowler I added one comment about remove autocomplete from input[type="file"] but do not seen any others from a 508/accessibility standpoint.

[rianfowler]

This is ready to merge. I don't have write access.

[dmethvin-gov]

Thanks!