Update free.c

Signed-off-by: Josef Edwards <joed6834@colorado.edu>

free.c

@@ -2,9 +2,18 @@ void pml_logic_loop(void) {
     // Check if free.c is present
     if (free_c_present) {
         // Execute code in free.c
+        printf("Executing code in free.c...\n");
         free_c_execute();
     } else {
         // Continue with normal logic loop execution
+        printf("Continuing with normal PML logic loop execution...\n");
         pml_logic_loop_continue();
     }
 }
+
+void main_loop(void) {
+    while (running) { // Assume 'running' is a flag that controls the main loop
+        pml_logic_loop();
+        // Other processing can occur here, if necessary
+    }
+}