Start tracking speed of various functions. Uncomplete

tests/speed.cpp

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+#include <functions.h>
+#include <constants.h>
+#include <bitwise.h>
+#include <chrono>
+#include <iostream>
+#include <vector>
+#include <array>
+
+using namespace std;
+using namespace std::chrono;
+
+// TODO make complete, add complex scenarios.
+// Test every function on their edge cases.
+int main(){
+	high_resolution_clock::time_point t1 = high_resolution_clock::now();
+	for (int i = 0; i < 10000000; i++){
+		vector<int> moves = {};
+		get_all_moves(Position::E8, DEFAULT_BOARD, moves);
+	}
+	high_resolution_clock::time_point t2 = high_resolution_clock::now();
+	auto duration = duration_cast<microseconds>( t2 - t1 ).count();
+
+	cout << "10,000,000 iterations of get_all_moves took " << duration << " micro seconds" << endl;
+}