Ruby CLI for knapsack problem

1. gem install thor
2. git clone <URL>
3. cd knap

thor knap load <FILE_NAME>
options:
-v || --verbose (default: false)
--combinations (default: false)
--counts (default: false)
--to_s (default: true)

thor knap test
options:
-v || --verbose (default: false)

thor knap help

Includes CLI for generating test menus

1. cd spec
2. thor menu_gen || thor menu_gen help

All test files are saved in spec/test_menus

In knapsack.rb:

k = Knapsack.new('path/to/file.txt')
k.combinations # returns all combinations of items whose prices add up to target price
k.counts       # returns array of hashes with items as keys and count as values
puts k         # string representation