Text encoding revamp: trait changes and more text encodings

[Enet4]

This is another step intended to cover some of the current issues in text encoding.

Major changes:

• TextCodec no longer implies Debug
  • This is not a common practice anyway, such a constraint makes more sense where it is actually needed.
• New method TextCodec::name, for retrieving the character set's defined term.
• SpecificCharacterSet is marked as non-exhaustive, so that the presence of future encodings does not break future code upon this change.

New:

• New character encodings: ISO-IR 100, ISO-IR 101, ISO-IR 109, ISO-IR 110, ISO-IR 144.
• Report to stderr when an unsupported text encoding is decoded (should become a warning log line with Logging foundation #49).

Misc:

• Added a test at parser to check that the specific character set is updated after decoding the respective data element (verifies fix parse Specific Character Set error #52).
• Used a macro to implement existing text encodings via the encoding crate.
• Add baseline tests for some of the current text encodings.

[9enki]

@Enet4 Is it OK to ask questions here related to this PR? If it is against the rules, I will delete the post.

Report to stderr when an unsupported text encoding is decoded (should become a warning log line with #49).

According to avobe description, unsupported text encoding will cause an error when decoded, but is the case I tried below the case where an error should occur?

let specific_character_set = self
    .object
    .element(tags::SPECIFIC_CHARACTER_SET)
    .unwrap()
    .to_multi_str();
let patient_name = self
    .object
    .element(tags::PATIENT_NAME)
    .unwrap()
    .to_multi_str();
info!("SPECIFIC_CHARACTER_SET: {:?}", specific_character_set);
info!("PATIENT_NAME:           {:?}", patient_name);

2023-11-24T08:44:03.903759Z  INFO api::presentation::validates::analysis::dicom: SPECIFIC_CHARACTER_SET: Ok(["ISO 2022 IR 13", "ISO 2022 IR 87"])
2023-11-24T08:44:03.903783Z  INFO api::presentation::validates::analysis::dicom: PATIENT_NAME:           Ok(["ŶÔÏ^º³¼Þ=\u{1b}$BCf;3\u{1b}(J^\u{1b}$B9'<#\u{1b}(J"])