[IMP] survey: add new scoreable questions demo/test data

Adding additional demo and test data for new scorable question types:
'numerical_box', 'date', and 'datetime'. Includes both a scored and
unscored (i.e. answer_score = 0) version for each question type to
ensure differing behavior is viewable in survey results.

Also updating existing data/tests to:
1. Follow American standard for $ placement.
2. Have hardcoded 'answer_is_correct' and 'answer_score' demo data (due
   to updated correct answer implementation being done via frontend
   input only)
3. Update minor errors in the existing demo data (for example, removing
   2nd answer for a single answer choice question for the same survey
   submission).

Upgrade PR: odoo/upgrade#835
Task ID: 2061937

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