Feature/blowfish

[Kalkwst]

• [X] I have performed a self-review of my code
• [X] My code follows the style guidelines of this project
• [X] I have added tests that prove my fix is effective or that my feature works
• [X] New and existing unit tests pass locally with my changes
• [X] Comments in areas I changed are up to date
• [X] I have added comments to hard-to-understand areas of my code
• [X] I have made corresponding changes to the README.md

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (2d6a3ee) 95.79% compared to head (2ffe59c) 95.90%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #405 +/- ## ========================================== + Coverage 95.79% 95.90% +0.11% ========================================== Files 220 221 +1 Lines 8957 9200 +243 ========================================== + Hits 8580 8823 +243 Misses 377 377 ``` | [Files](https://app.codecov.io/gh/TheAlgorithms/C-Sharp/pull/405?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheAlgorithms) | Coverage Δ | | |---|---|---| | [Algorithms/Encoders/BlowfishEncoder.cs](https://app.codecov.io/gh/TheAlgorithms/C-Sharp/pull/405?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheAlgorithms#diff-QWxnb3JpdGhtcy9FbmNvZGVycy9CbG93ZmlzaEVuY29kZXIuY3M=) | `100.00% <100.00%> (ø)` | |

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[siriak]

Please fix these issues

[Kalkwst]

Codacy fails

Fixed :)