Add abnormally decreased wetness of anatomical entity pattern template

[rays22]

1. add abnormallyDecreasedWetnessOfAnatomicalEntity.yaml DOS-DP pattern draft for community review
   • PATO:0001826 decreased wetness: A wetness quality that is relatively low.
2. get feedback
3. fix or improve pattern based on feedback

• Examples:
  • MP:0003536 vagina dryness

[rays22]

Related: abnormally dry anatomical entity pattern