Add Cahn-Hilliard output test

[dschwen]

Refs #6

[moosebuild]

Job Documentation, step Sync to remote on 5569391 wanted to post the following:

View the site here

This comment will be updated on new commits.

[moosebuild]

Job Coverage, step Generate coverage on 5569391 wanted to post the following:

Coverage

	f15a25	#8 556939
	Total	Total	+/-	New
Rate	27.72%	52.96%	+25.25%	70.59%
Hits	763	1465	+702	12
Misses	1990	1301	-689	5

Diff coverage report

Full coverage report

Warnings

• New new line coverage rate 70.59% is less than the suggested 90.0%

This comment will be updated on new commits.

[dschwen]

These schema different look like a test harness error. What's going on here?

[dschwen]

Ahh, this is probably a thread issue! This output system is asynchronous using a dedicated thread. I bet the time increases sometimes before the output data is written!

[moosebuild]

Job Precheck, step Clang format on 35d600b wanted to post the following:

Your code requires style changes.

A patch was auto generated and copied here
You can directly apply the patch by running, in the top level of your repository:

curl -s https://mooseframework.inl.gov/swift/docs/PRs/8/clang_format/style.patch | git apply -v

Alternatively, with your repository up to date and in the top level of your repository:

git clang-format f15a25196df526c288eadb521431d111405da043