Improve Knapsack 0/1 Implementation

[sozelfist]

Type of change :pen:

Refactor Knapsack 0/1 implementation

Checklist :rocket:

• [x] I ran bellow commands using the latest version of rust nightly.
• [x] I ran cargo clippy --all -- -D warnings just before my last commit and fixed any issue that was found.
• [x] I ran cargo fmt just before my last commit.
• [x] I ran cargo test just before my last commit and all tests passed.
• [x] I added my algorithm to the corresponding mod.rs file within its own folder, and in any parent folder(s).
• [x] I added my algorithm to DIRECTORY.md with the correct link.
• [x] I checked COUNTRIBUTING.md and my code follows its guidelines.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.04%. Comparing base (5f0eab8) to head (f58a5ef).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #740 +/- ## ========================================== - Coverage 95.05% 95.04% -0.01% ========================================== Files 306 306 Lines 22733 22720 -13 ========================================== - Hits 21609 21595 -14 - Misses 1124 1125 +1 ```

:umbrella: View full report in Codecov by Sentry.
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[sozelfist]

In this PR:

• I have rewritten the implementation of the knapsack_table (renamed to generate_knapsack_matrix) using iterators and higher-order functions to make the implementation more streamlined.
• Rename function to more descriptive names and rewrite tests using macro.
• Organize the code in a structural form.

If you have any suggestions, feel free to do so.

[sozelfist]

Can you have a look on this PR, @vil02?

[sozelfist]

Can you review this PR, @vil02?