Add missing TLS signature schemes

[dcooper16]

Describe your changes

This PR fixes a few places where new signature schemes were not added:

1. It adds ECDSA with the Brainpool curves for TLS 1.3 (0x081a, 0x081b, and 0x081c) to get_server_certificate(), certificate_transparency(), and prepare_tls_clienthello().

2. It adds rsa_pss_pss (0x0809, 0x080a, 0x080b) to certificate_transparency().

3. It adds the signature schemes for EdDSA (0x0807, 0x0808) and ML-DSA (0x0904, 0x0905, 0x0906) to certificate_transparency().

What is your pull request about?

• Bug fix
• Improvement
• New feature (adds functionality)
• Breaking change (bug fix, feature or improvement that would cause existing functionality to not work as expected)
• Typo fix
• Documentation update
• Update of other files

If it's a code change please check the boxes which are applicable

• For the main program: My edits contain no tabs, indentation is five spaces and any line endings do not contain any blank chars
• I've read CONTRIBUTING.md and Coding_Convention.md
• I have tested this fix or improvement against >=2 hosts and I couldn't spot a problem
• I have tested this new feature against >=2 hosts which show this feature and >=2 host which does not (in order to avoid side effects) . I couldn't spot a problem
• For the new feature I have made corresponding changes to the documentation and / or to help()
• If it's a bigger change: I added myself to CREDITS.md (alphabetical order) and the change to CHANGELOG.md

[drwetter]

thanks!