Add biometric categories to Personal Data extension

[coolharsh55]

See minutes 03 APR 2024 for discussion on adding specific biometric categories to PD extension.

• [ ] Look at ISO JTC1/SC37 biometrics standards to identify top-categories under biometrics
• [ ] Look at minutes 03 APR 2024 for concepts
• [ ] Look at GDPR and AI Act for biometric categories (e.g. physiological, behavioral)

[ghurlbot]

Comment by @coolharsh55 via IRC channel #dpvcg on irc.w3.org

identify what categories are present and add them to PD