Complete move of headers to coincellhell directory

coincellhell.c

@@ -35,7 +35,6 @@
 
 #include "coincellhell/coincellhell.h"
 #include "usbshm.h"
-#include "usbcommands.h"
 
 #define VID 0xfe17
 #define PID 0x08dc

main.c

@@ -31,10 +31,9 @@
 #include <string.h>
 #include <signal.h>
 
-#include "coincellhell.h"
+#include "coincellhell/coincellhell.h"
 #include "options.h"
 #include "float.h"
-#include "usbcommands.h"
 
 static void print_commands(void)
 {