Implement quiz feature

[moyj01]

No description provided.

[codecov-io]

Codecov Report

Merging #96 into master will decrease coverage by 2.14%.
The diff coverage is 20.32%.

@@             Coverage Diff              @@
##             master      #96      +/-   ##
============================================
- Coverage     63.58%   61.44%   -2.15%     
- Complexity      525      536      +11     
============================================
  Files           101      104       +3     
  Lines          1862     1953      +91     
  Branches        219      224       +5     
============================================
+ Hits           1184     1200      +16     
- Misses          593      668      +75     
  Partials         85       85              

Impacted Files	Coverage Δ	Complexity Δ
.../main/java/seedu/flashcard/logic/LogicManager.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...lashcard/logic/commands/IncrementStatsCommand.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...va/seedu/flashcard/logic/commands/QuizCommand.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...du/flashcard/logic/parser/FlashcardDeckParser.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
src/main/java/seedu/flashcard/ui/MainWindow.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
src/main/java/seedu/flashcard/ui/QuizPanel.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
src/main/java/seedu/flashcard/ui/ReviewPanel.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
src/main/java/seedu/flashcard/ui/StudyPanel.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
.../seedu/flashcard/logic/commands/CommandResult.java	55.88% <60.00%> (-2.19%)	12.00 <2.00> (+1.00)	⬇️
.../main/java/seedu/flashcard/logic/StudyManager.java	67.85% <67.85%> (ø)	10.00 <10.00> (?)
... and 15 more

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[sgn00]

LGTM