Adding set extension to UILabelExtensions (by vilapuigvila)

[Khalian]

Checklist

• New Extension
• New Test
• Changed more than one extension, but all changes are related
• Trivial change (doesn't require changelog)

[Khalian]

Squashing and removing edits to unrelated files from #302.

[EZSwiftExtensionsBot]

	2 Messages
📖	Executed 179 tests, with 0 failures (0 unexpected) in 8.484 (8.750) seconds
📖	Executed 165 tests, with 0 failures (0 unexpected) in 4.043 (4.326) seconds

Generated by 🚫 Danger

[codecov-io]

Codecov Report

Merging #340 into master will increase coverage by -0.12%.

@@            Coverage Diff             @@
##           master     #340      +/-   ##
==========================================
- Coverage   39.35%   39.24%   -0.12%     
==========================================
  Files          47       47              
  Lines        2175     2171       -4     
==========================================
- Hits          856      852       -4     
  Misses       1319     1319

Impacted Files	Coverage Δ
Sources/UILabelExtensions.swift	50% <100%> (-6.25%)	❌

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[Khalian]

So I cannot approve this, since I posted the PR on behalf of @vilapuigvila in the first place.