Add random generator

[erisjacey]

No description provided.

[codecov-io]

Codecov Report

Merging #112 into master will increase coverage by 0.01%.
The diff coverage is 82.35%.

@@             Coverage Diff              @@
##             master     #112      +/-   ##
============================================
+ Coverage     74.92%   74.94%   +0.01%     
- Complexity      708      714       +6     
============================================
  Files           112      114       +2     
  Lines          2070     2087      +17     
  Branches        220      221       +1     
============================================
+ Hits           1551     1564      +13     
- Misses          466      467       +1     
- Partials         53       56       +3     

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/atas/logic/parser/AtasParser.java	94.44% <0.00%> (-5.56%)	22.00 <0.00> (ø)
src/main/java/atas/model/Model.java	100.00% <ø> (ø)	2.00 <0.00> (ø)
src/main/java/atas/ui/HelpWindow.java	0.00% <ø> (ø)	0.00 <0.00> (ø)
...main/java/atas/logic/commands/atas/RngCommand.java	77.77% <77.77%> (ø)	2.00 <2.00> (?)
...java/atas/commons/core/random/RandomGenerator.java	100.00% <100.00%> (ø)	3.00 <3.00> (?)
src/main/java/atas/model/ModelManager.java	94.62% <100.00%> (+0.11%)	38.00 <1.00> (+1.00)

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[marcustw]

LGTM! Just some query for the 2 test files.

[marcustw]

LGTM!