Add ArArrayHelper

[Tigrov]

For compatibility without magical implementation

Q	A
Is bugfix?	✔️/❌
New feature?	❌
Breaks BC?	❌
Fixed issues	#308

[codecov]

Codecov Report

Attention: Patch coverage is 90.32258% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 87.50%. Comparing base (c3477c4) to head (a9324e0).

Files	Patch %	Lines
src/ArArrayHelper.php	90.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #334      +/-   ##
============================================
+ Coverage     87.44%   87.50%   +0.05%     
- Complexity      596      610      +14     
============================================
  Files            12       13       +1     
  Lines          1362     1392      +30     
============================================
+ Hits           1191     1218      +27     
- Misses          171      174       +3     

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