Set up project structure

src/test/kotlin/ltd/hlaeja/ApplicationTests.kt

@@ -0,0 +1,13 @@
+package ltd.hlaeja
+
+import org.junit.jupiter.api.Test
+import org.springframework.boot.test.context.SpringBootTest
+
+@SpringBootTest
+class ApplicationTests {
+
+    @Test
+    fun contextLoads() {
+        // placeholder
+    }
+}