addition: Added basic header and structure

test/CMakeLists.txt

@@ -3,7 +3,7 @@ find_package(cmocka REQUIRED)
 add_executable(test_arraylist test_arraylist.c)
 
 target_link_libraries(test_arraylist
-    arena_lib
+    arraylist_lib
     cmocka::cmocka
 )
 

test/test_arraylist.c

@@ -0,0 +1,5 @@
+#include <stdlib.h>
+
+int main(void) {
+    return EXIT_SUCCESS;
+}