add request review

atst/models/request_review.py

@@ -0,0 +1,19 @@
+from sqlalchemy import Column, Integer, String
+from sqlalchemy.orm import relationship
+
+from atst.models import Base
+
+
+class RequestReview(Base):
+    __tablename__ = "request_reviews"
+
+    id = Column(Integer, primary_key=True)
+    status = relationship("RequestStatusEvent", back_populates="review")
+
+    comments = Column(String)
+    fname_mao = Column(String)
+    lname_mao = Column(String)
+    email_mao = Column(String)
+    phone_mao = Column(String)
+    fname_ccpo = Column(String)
+    lname_ccpo = Column(String)