add functionality addValue

[Kutuzovska]

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	✔️
Fixed issues	#136

[what-the-diff]

PR Summary

• New 'addValue' method in ArrayHelper class
  A new function called 'addValue' has been added to the ArrayHelper class. This feature allows for the addition of values to specific array paths, even creating the path if it doesn't already exist. This is useful when you need to store information in an array and need a fixed path to it. Additionally, it smartly handles any situations where the value may already exist, setting this existing value as the lead element in the array to keep track.

• New 'AddValueTest' file for testing
  Along with the new method, a new file named 'AddValueTest.php' has been created for proper testing. This file is specifically designed to conduct tests for the 'addValue' method ensuring its correctness and smooth operation.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (ff29fb0) 99.75% compared to head (d54ccaa) 99.75%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #137   +/-   ##
=========================================
  Coverage     99.75%   99.75%           
- Complexity      200      208    +8     
=========================================
  Files             4        4           
  Lines           400      415   +15     
=========================================
+ Hits            399      414   +15     
  Misses            1        1           

Files	Coverage Δ
src/ArrayHelper.php	99.67% <100.00%> (+0.01%)	⬆️

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[Kutuzovska]

docs fix

[Kutuzovska]

accept

[Kutuzovska]

add fix

[vjik]

@Kutuzovska Thank you 👍