Renamed the project and project artifacts to sexpp; added a filter for symbol visibility

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (803744e) 99.70% compared to head (358defd) 99.70%.

:exclamation: Current head 358defd differs from pull request most recent head d100d6c. Consider uploading reports for the commit d100d6c to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #48 +/- ## ======================================= Coverage 99.70% 99.70% ======================================= Files 10 10 Lines 689 689 ======================================= Hits 687 687 Misses 2 2 ``` | [Impacted Files](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp) | Coverage Δ | | |---|---|---| | [include/sexpp/ext-key-format.h](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-aW5jbHVkZS9zZXhwcC9leHQta2V5LWZvcm1hdC5o) | `100.00% <ø> (ø)` | | | [include/sexpp/sexp.h](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-aW5jbHVkZS9zZXhwcC9zZXhwLmg=) | `100.00% <ø> (ø)` | | | [src/ext-key-format.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL2V4dC1rZXktZm9ybWF0LmNwcA==) | `100.00% <ø> (ø)` | | | [src/sexp-depth-manager.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtZGVwdGgtbWFuYWdlci5jcHA=) | `100.00% <ø> (ø)` | | | [src/sexp-error.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtZXJyb3IuY3Bw) | `100.00% <ø> (ø)` | | | [src/sexp-input.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtaW5wdXQuY3Bw) | `100.00% <ø> (ø)` | | | [src/sexp-object.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtb2JqZWN0LmNwcA==) | `98.55% <ø> (ø)` | | | [src/sexp-output.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtb3V0cHV0LmNwcA==) | `100.00% <ø> (ø)` | | | [src/sexp-simple-string.cpp](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-c3JjL3NleHAtc2ltcGxlLXN0cmluZy5jcHA=) | `98.61% <ø> (ø)` | | | [include/sexpp/sexp-error.h](https://app.codecov.io/gh/rnpgp/sexpp/pull/48?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=rnpgp#diff-aW5jbHVkZS9zZXhwcC9zZXhwLWVycm9yLmg=) | `100.00% <100.00%> (ø)` | |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Do you have feedback about the report comment? Let us know in this issue.

[ronaldtse]

Thank you @maxirmx ! Please feel free to merge after answering the remaining question.