Adds encrypt/decrypt to cli

[codecov-commenter]

Codecov Report

Patch coverage: 83.82% and project coverage change: +0.96 :tada:

Comparison is base (1172ef7) 72.38% compared to head (4700c5a) 73.34%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #67 +/- ## ========================================== + Coverage 72.38% 73.34% +0.96% ========================================== Files 92 93 +1 Lines 10634 10916 +282 ========================================== + Hits 7697 8006 +309 + Misses 2937 2910 -27 ``` | [Impacted Files](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance) | Coverage Δ | | |---|---|---| | [navajo-cli/src/aad.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvYWFkLnJz) | `0.00% <0.00%> (ø)` | | | [navajo-cli/src/lib.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvbGliLnJz) | `100.00% <ø> (ø)` | | | [navajo-cli/src/algorithm.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvYWxnb3JpdGhtLnJz) | `65.43% <24.24%> (-28.45%)` | :arrow_down: | | [navajo-cli/src/segment.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvc2VnbWVudC5ycw==) | `50.00% <50.00%> (ø)` | | | [navajo-cli/src/envelope.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvZW52ZWxvcGUucnM=) | `67.60% <66.66%> (+28.79%)` | :arrow_up: | | [navajo-cli/src/cli.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvY2xpLnJz) | `83.75% <93.95%> (+3.54%)` | :arrow_up: | | [navajo-cli/src/encoding.rs](https://codecov.io/gh/chanced/navajo/pull/67?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance#diff-bmF2YWpvLWNsaS9zcmMvZW5jb2RpbmcucnM=) | `77.90% <100.00%> (+0.93%)` | :arrow_up: | ... and [5 files with indirect coverage changes](https://codecov.io/gh/chanced/navajo/pull/67/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance) Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Chance)

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