Add new state AskPortion; fix spell checker

[thomaszhouan]

Add new state AskPortion for controller

[codecov[bot]]

Codecov Report

Merging #102 into develop will decrease coverage by 0.6%. The diff coverage is 44.6%.

@@             Coverage Diff             @@
##             develop    #102     +/-   ##
===========================================
- Coverage       63.7%   63.1%   -0.7%     
- Complexity       328     331      +3     
===========================================
  Files             39      40      +1     
  Lines           1676    1708     +32     
  Branches         214     218      +4     
===========================================
+ Hits            1069    1079     +10     
- Misses           530     551     +21     
- Partials          77      78      +1

Impacted Files	Coverage Δ	Complexity Δ
...-chatbot/src/main/java/database/keeper/Keeper.java	78.5% <ø> (ø)	6 <0> (ø)	:arrow_down:
...ieting-chatbot/src/main/java/controller/State.java	93.3% <100%> (+0.2%)	10 <0> (ø)	:arrow_down:
...ieting-chatbot/src/main/java/agent/MenuParser.java	79% <100%> (-0.4%)	13 <0> (ø)
...g-chatbot/src/main/java/agent/FoodRecommender.java	74.6% <100%> (ø)	52 <3> (ø)	:arrow_down:
...ting-chatbot/src/main/java/agent/PortionAsker.java	24.1% <24.1%> (ø)	3 <3> (?)
dieting-chatbot/src/main/java/agent/MealAsker.java	75.2% <33.3%> (-0.3%)	17 <0> (ø)
...atbot/src/main/java/utility/JazzySpellChecker.java	73.4% <81.8%> (+2.3%)	7 <0> (ø)	:arrow_down:

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