Add a naive single thread algorithm

src/algorithm.rs

@@ -0,0 +1,3 @@
+mod single_thread;
+
+pub use single_thread::single_thread;

src/algorithm/single_thread.rs

@@ -0,0 +1,7 @@
+use crate::Task;
+
+pub fn single_thread(data: &[Task]) {
+	for task in data {
+		task.execute();
+	}
+}

src/lib.rs

@@ -1,3 +1,4 @@
+mod algorithm;
 mod data;
 
 use pbkdf2::pbkdf2_hmac;