Add support for 'sort' command for budget page parser

[yu-ming-chen]

No description provided.

[codecov-io]

Codecov Report

Merging #141 into master will decrease coverage by 0.27%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##             master     #141      +/-   ##
============================================
- Coverage     32.34%   32.07%   -0.28%     
  Complexity      193      193              
============================================
  Files            94       96       +2     
  Lines          1416     1428      +12     
  Branches        111      111              
============================================
  Hits            458      458              
- Misses          914      926      +12     
  Partials         44       44              

Impacted Files	Coverage Δ	Complexity Δ
.../logic/commands/budget/SortExpenditureCommand.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...ogic/parser/budgetpageparser/BudgetPageParser.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
src/main/java/seedu/address/model/Model.java	0.00% <ø> (ø)	0.00 <0.00> (ø)
...rc/main/java/seedu/address/model/ModelManager.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
src/main/java/seedu/address/model/Nusave.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...va/seedu/address/model/SortExpendituresByName.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)

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[wenhaogoh]

LGTM

[wenhaogoh]

LGTM