Add solution for "Day 10: Factory", part 1

src/main.rs

@@ -11,7 +11,7 @@ fn main() {
     solvers::run(solvers::laboratories::Laboratories {});
     solvers::run(solvers::playground::Playground::new(None));
     solvers::run(solvers::movie_theater::MovieTheater {});
-    // Factory
+    solvers::run(solvers::factory::Factory {});
     // Reactor
     // ChristmasTreeFarm
 }