Added new feature & unit tests

[sertxudev]

No description provided.

[codecov-commenter]

Codecov Report

Merging #23 (1b17668) into 2.x (cacfd44) will increase coverage by 12.18%.
The diff coverage is 87.03%.

❗ Current head 1b17668 differs from pull request most recent head 07ae42f. Consider uploading reports for the commit 07ae42f to get more accurate results

@@              Coverage Diff              @@
##                2.x      #23       +/-   ##
=============================================
+ Coverage     47.84%   60.02%   +12.18%     
- Complexity      225      231        +6     
=============================================
  Files            37       40        +3     
  Lines           673      683       +10     
=============================================
+ Hits            322      410       +88     
+ Misses          351      273       -78     

Impacted Files	Coverage Δ
src/Fields/Concerns/Required.php	0.00% <0.00%> (ø)
src/Fields/Concerns/Sortable.php	100.00% <ø> (ø)
src/Fields/DateTime.php	0.00% <0.00%> (-100.00%)	⬇️
src/Fields/Image.php	58.97% <0.00%> (+58.97%)	⬆️
src/Fields/Text.php	100.00% <ø> (+60.00%)	⬆️
src/Http/Controllers/MainController.php	0.00% <ø> (ø)
src/Http/Controllers/ResourceCreateController.php	100.00% <ø> (ø)
src/Fields/Password.php	83.33% <66.66%> (+23.33%)	⬆️
src/Resources/Resource.php	96.15% <90.90%> (-1.11%)	⬇️
src/Fields/Boolean.php	100.00% <100.00%> (+100.00%)	⬆️
... and 16 more

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