Implement Autosort for Meeting

[claraadora]

No description provided.

[codecov-io]

Codecov Report

Merging #77 into master will increase coverage by 4.43%.
The diff coverage is 92.00%.

@@             Coverage Diff              @@
##             master      #77      +/-   ##
============================================
+ Coverage     47.71%   52.15%   +4.43%     
- Complexity      556      606      +50     
============================================
  Files           138      139       +1     
  Lines          2513     2558      +45     
  Branches        281      288       +7     
============================================
+ Hits           1199     1334     +135     
+ Misses         1252     1127     -125     
- Partials         62       97      +35     

Impacted Files	Coverage Δ	Complexity Δ
...dress/model/meeting/meeting/UniqueMeetingList.java	57.14% <75.00%> (+13.24%)	13.00 <1.00> (+3.00)
.../java/seedu/address/model/meeting/MeetingBook.java	88.88% <100.00%> (+22.22%)	12.00 <1.00> (+3.00)
...a/seedu/address/model/meeting/meeting/Meeting.java	72.54% <100.00%> (+4.54%)	15.00 <1.00> (+3.00)
.../address/model/meeting/util/MeetingComparator.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...c/main/java/seedu/address/model/util/DateTime.java	86.53% <100.00%> (+0.26%)	21.00 <1.00> (+1.00)
...c/main/java/seedu/address/model/util/Contacts.java	46.66% <0.00%> (ø)	5.00% <0.00%> (+2.00%)
.../seedu/address/model/meeting/meeting/Location.java	46.66% <0.00%> (ø)	5.00% <0.00%> (+2.00%)
...ddress/logic/parser/meeting/MeetingBookParser.java	0.00% <0.00%> (ø)	0.00% <0.00%> (ø%)
... and 10 more

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[MerlinLim]

Tested with Edit Command as well, person cards auto sort as expected. Left a minor remark for clarification, LGTM.

[claraadora]

Closes: #77