Add TBC Padding

[Kalkwst]

Add implementation of the Trailing-Bit-Complement padding. As always this class implements methods for adding, removing and validating the padding of a byte array.

• [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 (d65c7d1) 95.94% compared to head (77c83b9) 95.96%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #413 +/- ## ========================================== + Coverage 95.94% 95.96% +0.02% ========================================== Files 224 225 +1 Lines 9338 9395 +57 ========================================== + Hits 8959 9016 +57 Misses 379 379 ``` | [Files](https://app.codecov.io/gh/TheAlgorithms/C-Sharp/pull/413?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheAlgorithms) | Coverage Δ | | |---|---|---| | [Algorithms/Crypto/Paddings/TbcPadding.cs](https://app.codecov.io/gh/TheAlgorithms/C-Sharp/pull/413?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=TheAlgorithms#diff-QWxnb3JpdGhtcy9DcnlwdG8vUGFkZGluZ3MvVGJjUGFkZGluZy5jcw==) | `100.00% <100.00%> (ø)` | |

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