Add domain types

user.go

@@ -0,0 +1,18 @@
+package geeksbot
+
+import "database/sql"
+
+type User struct {
+	ID       string
+	SteamID  sql.NullString
+	IsActive bool
+	IsStaff  bool
+	IsAdmin  bool
+}
+
+type UserService interface {
+	User(id string) (*User, error)
+	CreateUser(u *User) (*User, error)
+	DeleteUser(u *User) error
+	UpdateUser(u *User) (*User, error)
+}