feat: Parse certificate and extensions

[fulder]

Large refactor into new CryptoParser extending pydantic models created by parsing cryptography x509 objects for:

• Certificate
• Certificates (list of Certificate)
• Chain (extending Certificates)
• CertificateRevocationList
• Extension (including all x509.Extension implementations)
• Name (previously called Subject)
• OCSPResponse

All functions for e.g. revoke has been changed to use the new models and some root functions has been moved into the models:

• [BREKING] pki_tools.cert_from_pem moved to Certificate.from_pem_string static class method
• [BREKING] pki_tools.get_cert_serial moved to Certificate.serial_number class property
• [BREKING] pki_tools.parse_subject moved to Certificate.from_cryptography static class method and once loaded the Certificate.subject class property, returning a Name model, can be used instead
• [BREKING] pki_tools.pem_from_cert moved to Certificate.pem_string class property
• [BREKING] pki_tools.read_from_file moved to Certificate.from_file static class method
• [BREKING] pki_tools.read_many_from_file moved to Certificates.from_file static class method
• [BREKING] pki_tools.save_to_file moved to Certificate.to_file class method
• [BREKING] pki_tools.verify_signature now requires the new Certificate, CertificateRevocationList or OCSPResponse models for signed parameter and Certificate for the issuer
• [BREKING] pki_tools.is_revoked and pki_tools.is_revoked_multiple_issuers now requires the new Certificate and Chain models for the cert and chain parameters
• All imports from pki_tools can now be imported using just the root pki_tools package. Meaning e.g. the old from pki_tools.types import Chain should now be changed to from pki_tools import Chain instead
• [BREKING] PemCert type has been removed, instead use the from_pem_string static class methods