Player project cycle stats DM

[heyheyjp]

NOTE: Forked from features/player-stats (#371).

Fixes #367.
Fixes: #355.

Modified from original UX described in #355.

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Retrospective results for #happy-tiger:

Feedback from your team:

• Jeffrey, I like working with you because you shower every day and I'd like working with you even more if you chewed with your mouth closed.
• Jeffrey, I like working with you because you have an interesting way of deconstructing problems, and I'd like working with you even more if you took more risks.
• ...

Stats earned from this project:

Learning Support: 70%
Culture Contribution: 84%

Hours contributed:

Team size: 3
Your hours: 40
All team hours: 120

@deadlyicon (Jared Grippe): 5
@jeffreywescott (Jeffrey Wescott): 42
@tannerwelsh (Tanner Welsh): 34

Contribution to the project:

Self-assessed: 40%
Team-assessed: 45%

Estimated contribution to the project: 42%
Expected contribution for # of hours: 33%
Contribution difference: 9%

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[jeffreywescott]

Is this too similar to / a duplicate of server/util/survey.js STATS_QUESTION_TYPES (which is exported)?

[heyheyjp]

I'd hold off reviewing this until the other is merged. Builds on top of
that - shouldn't be any duplication in these constants now.

I see now, nevermind.