Add stage terms required for reproductive tissue/anatomy

[dosumis]

• Tanner stage (puberty staging)
• Menstrual cycle state/phase

TBD

• Do Tanner stages go under life cycle stage?
• Menstrual cycle needs new root?

Needed for annotation of reproductive anatomy datasets. Could also be used internally in Uberon?

[github-actions[bot]]

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[Caroline-99]

Related doc for tanner stages terms, textual & logical defs, refs