Add rotated(by places: Int) and rotate(by places: Int) new array extensions.

[LucianoPAlmeida]

Checklist

• I checked the Contributing Guidelines before creating this request.
• New extensions are written in Swift 3.
• New extensions support iOS 8.0+ / tvOS 9.0+ / macOS 10.10+ / watchOS 2.0+.
• I have added tests for new extensions, and they passed.
• All extensions have a clear comments explaining their functionality, all parameters and return type in English.
• All extensions are declared as public.

[codecov]

Codecov Report

Merging #207 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #207      +/-   ##
==========================================
+ Coverage   92.91%   92.96%   +0.05%     
==========================================
  Files          85       85              
  Lines        4885     4920      +35     
==========================================
+ Hits         4539     4574      +35     
  Misses        346      346

Impacted Files	Coverage Δ
...ources/Extensions/Foundation/ArrayExtensions.swift	100% <100%> (ø)	⬆️
Tests/FoundationTests/ArrayExtensionsTests.swift	98.22% <100%> (+0.11%)	⬆️

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