Add documentation and class descriptions

[cticenhour]

Application-level reports now pass and will be changed to an error for future PRs.

Closes #62

[moosebuild]

Job Precheck on 158fcd4 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/tmap8/docs/PRs/63/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 eead7be0b2cf8d0760091d607244810e64adcc1e

[moosebuild]

Job Documentation on d9c84cf wanted to post the following:

View the site here

This comment will be updated on new commits.

[cticenhour]

I've seen it as "specie", but that's not saying those folks were correct. 😄 I'll accept these for consistency across all our documentation.