Swap Travis for Circle CI

[puregarlic]

Updates Made

Circle CI is a far more extensible and performant CI solution than Travis, so this PR has replicated the current Travis configuration for Circle. Additionally, it fixes some untested and most-likely broken functionality (like promoting the beta tag to latest). Additionally, I've added JUnit reporting so we can see failed tests at-a-glance.

Here's what the pipeline looks like:

+-------------+
|Checkout code|
+------+------+
       |
       |
       |
+------v-----------------+
|Install NPM dependencies+--+
+------+-----------------+  |
       |                    |
       |                    |
       |                    |
+------v-------+    +-------v-------+
|Run unit tests|    |Lint Typescript|
+------+-------+    +---------------+
       |
       +--------------------+--------------------+
       |                    |                    |
+------v--------+    +------v------+    +--------v--------+
|Build storybook|    |Build typedoc|    |Run webpack build|
+------+--------+    +------+------+    +-----------------+
       |                    |
       |                    |
       |                    |
+------v----+               |
|Deploy docs<---------------+
+---+-------+
    |
    |
    |
+---v---+
|Release|
+-------+

Contributing developer checklist

• I've updated source branch with the latest changes from dev.
• I've added/changed unit tests for components with functionality.
• I've added/updated storybook for any component that I've changed.
• I've reviewed each jsdoc header in regards to the changes that I've made and updated them.

Reviewing developer checklist

• I've pulled this branch to my local machine.
• I've inspected the changes on storybook.
• I've run the test suite and all tests have passed

[puregarlic]

Before this pipeline works completely, we need to establish GH_EMAIL and GH_NAME environmental variables. These are necessary for publishing documentation, but since we haven't published to master for awhile, it would be easy to forget about this.

[tnoelcke]

Lets make sure we get that done before I merge this pull request so it doesn't get forgotten.

[coveralls]

Coverage remained the same at 76.091% when pulling 90a9134 on setup/circleci into b08bbf6 on dev.

[cass-osu]

🎉 This PR is included in version 1.15.0 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot 📦🚀