Add basic listing by status

opentech/apply/funds/serializers.py

...ch/apply/funds/templates/funds/submissions_by_status.html

opentech/static_src/src/app/src/SubmissionsByRoundApp.js

opentech/static_src/src/app/src/SubmissionsByStatusApp.js

opentech/static_src/src/app/src/api/index.js

opentech/static_src/src/app/src/api/submissions.js

opentech/static_src/src/app/src/api/utils.js

...static_src/src/app/src/components/GroupedListing/index.js

opentech/static_src/src/app/src/containers/ByRoundListing.js

...atic_src/src/app/src/containers/GroupByRoundDetailView.js

opentech/static_src/src/app/src/redux/actions/submissions.js

...tech/static_src/src/app/src/redux/reducers/submissions.js

...ech/static_src/src/app/src/redux/selectors/submissions.js

opentech/static_src/src/app/src/submissionsByStatusIndex.js

opentech/static_src/src/app/webpack.base.config.js

package-lock.json