Add Abbreviation Dynamic Programming Algorithm

[AliAlimohammadi]

Description

Adds the Abbreviation problem solution to the dynamic programming module.

Problem Statement

Determines if string a can be transformed into string b by capitalizing
zero or more lowercase letters and deleting all remaining lowercase letters.

Implementation Details

• Uses dynamic programming approach
• Time Complexity: O(n * m)
• Space Complexity: O(n * m)
• Includes comprehensive test cases from HackerRank

Checklist

• Code follows the repository's style guidelines
• Tests pass locally (cargo test)
• Code formatted with cargo fmt
• No warnings from cargo clippy
• Updated mod.rs to include new module

[AliAlimohammadi]

Fixed typo

[AliAlimohammadi]

Fixed white spaces.

[AliAlimohammadi]

Fixed Clippy

[AliAlimohammadi]

Fixed test case

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.44%. Comparing base (13710a7) to head (d92d273).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #957      +/-   ##
==========================================
+ Coverage   95.39%   95.44%   +0.05%     
==========================================
  Files         332      333       +1     
  Lines       21496    21522      +26     
==========================================
+ Hits        20506    20542      +36     
+ Misses        990      980      -10     

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