Fix test_creating_arrays

* The class is Array

* The newly created array has a size of 0

[#48449047]
Fix test_array_literals to evaluate true

*  Array << will add another value to the end of the array

[#48449047]
Fix test_accessing_array_elements to true

* Array.first is the first value in array

* It is index 0 not index 1

[#48449047]
Fix test_slicing_arrays

* Array[0,1] is start with index 0
  and show one value of the array

[#48449047]
Fix test_arrays_and_ranges to true

* (1..5) array range run from the begin-
  ning to the end inclusively

* (1...5) array range runs and exclude
  the end value

[#48449047]
Fix test_slicing_with_ranges to be true

* Array[0...2] means start with index 0
  exclude last two values of array

* Array[2..-1] is start with index 2
  end with last value in array

[#48449047]
Fix test_pushing_and_popping_arrays to true

* Pop method removes last value from array

* Push adds item to end of array

[#48449047]
Fix def test_shifting_arrays to true

* Array.unshift(:first) puts value at
  front of array or in index 0

* Only supports one argument

[#48449047]
Merge pull request #5 from rwestweb/48449047_about_arrays_master

about arrays master

[Delivers #48449047]