Add LocaleProvider

[samdark]

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	❌
Fixed issues	-

[what-the-diff]

PR Summary

• Added LocaleProvider class
  New class introduced for easier localization management
• Updated README file
  Added description of the LocaleProvider class and updated license information

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (cdf2355) 100.00% compared to head (7dc7f69) 100.00%.

Additional details and impacted files

@@             Coverage Diff             @@
##              master       #55   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
- Complexity        68        72    +4     
===========================================
  Files              1         2    +1     
  Lines            186       194    +8     
===========================================
+ Hits             186       194    +8     

Impacted Files	Coverage Δ
src/LocaleProvider.php	100.00% <100.00%> (ø)

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