Imports of package tests

PathSynopsis
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/golang/protobuf/protoPackage proto provides functionality for handling protocol buffer messages.
github.com/golang/protobuf/ptypes/timestamp
google.golang.org/genproto/googleapis/firestore/v1Package firestore aliases all exported identifiers in package "cloud.google.com/go/firestore/apiv1/firestorepb".
mathPackage math provides basic constants and mathematical functions.