add CodeExamples class and test class for it
update define_method
add eval to add_test_cases
collect methods name in an array

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gather all test methods in array
refactor code, change names, add method that runs all the test methods
rename code_examples.rb to code_samples.rb
remove debug output
remove debug methods
delete code_examples.rb
remove debug methods
updated test_class for code samples
use minitest for test methods
create rakefile
change array name, so it matches the rest of the code
Merge pull request #9 from CodePadawans/code_ex

Code ex