refactor: move searching to static library

lib_vector_search/src/timer.cpp

@@ -0,0 +1,17 @@
+#include "timer.h"
+
+#include <chrono>
+#include <iostream>
+
+Timer::Timer(std::string_view name) : name_(name) { start(); };
+
+void Timer::start() { start_ = std::chrono::high_resolution_clock::now(); }
+
+void Timer::stop() {
+  auto end = std::chrono::high_resolution_clock::now();
+
+  auto duration =
+      std::chrono::duration_cast<std::chrono::microseconds>(end - start_);
+
+  std::cout << name_ << " took " << duration << std::endl;
+}