Created addCommentCommand.java

[ananya21]

Created a third section within project description in which comments can be added in the UI, Created AddCommentCommand.java, AddCommentCommandParser.java, and edited AddressBookParser.java

Resolves issue#85

[codecov]

Codecov Report

Attention: Patch coverage is 1.47059% with 67 lines in your changes are missing coverage. Please review.

Project coverage is 55.08%. Comparing base (a0b2d57) to head (bd39e30).

❗ Current head bd39e30 differs from pull request most recent head 6509297. Consider uploading reports for the commit 6509297 to get more accurate results

Files	Patch %	Lines
...eedu/address/logic/commands/AddCommentCommand.java	0.00%	25 Missing ⚠️
.../address/logic/parser/AddCommentCommandParser.java	0.00%	17 Missing ⚠️
src/main/java/seedu/address/ui/TaskListPanel.java	0.00%	10 Missing ⚠️
...main/java/seedu/address/model/project/Comment.java	0.00%	6 Missing ⚠️
src/main/java/seedu/address/ui/CommentCard.java	0.00%	5 Missing ⚠️
...c/main/java/seedu/address/model/person/Person.java	25.00%	3 Missing ⚠️
.../seedu/address/logic/parser/AddressBookParser.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #96      +/-   ##
============================================
+ Coverage     54.76%   55.08%   +0.32%     
  Complexity      453      453              
============================================
  Files           105      105              
  Lines          2014     2004      -10     
  Branches        217      213       -4     
============================================
+ Hits           1103     1104       +1     
+ Misses          857      846      -11     
  Partials         54       54              

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[Lin-Shuang-Shuang]

LGTM