feat: Add cert-tools binary (#638)

* WIP

* Support specifing truststore passwords

* Set version to 0.0.1

* Rename to truststore-merger

* Add some doc comments

* Detect duplicates by hash, not serial

* Set version to 0.0.0-dev

* Make sure PEM contains certificates

* Rename to cert-tool

* Rename to cert-tools

* Rename folder as well

* anyhow -> snafu

* regenerate nix

* Use stackable-tracing

* Use path from match

* refactor out into read_file_fn

* better error wording

* nix

* Try to use semantic conventions

* Update rust/cert-tools/src/cli_args.rs

Co-authored-by: Nick <[email protected]>

* Update rust/cert-tools/src/parsers.rs

Co-authored-by: Nick <[email protected]>

* Update rust/cert-tools/src/parsers.rs

Co-authored-by: Nick <[email protected]>

* Update rust/cert-tools/src/parsers.rs

Co-authored-by: Nick <[email protected]>

* fmt

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Co-authored-by: Nick <[email protected]>

Author: sbernauer