Move library code to library directory

/!\ BROKEN BUILD /!\

This commit moves the library code to the library directory.  This
causes the firmware to not compile.  A few changes were made to reduce
the nubmer of errors, but some errors just aren't going to go away until
I go ahead with the planned changes.

lib/src/priorities.h

+/*
+ * PD Buddy - USB Power Delivery for everyone
+ * Copyright (C) 2017 Clayton G. Hobbs <clay@lakeserv.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PDB_PRIORITIES_H
+#define PDB_PRIORITIES_H
+
+
+#include <ch.h>
+
+/* PD Buddy thread priorities */
+#define PDB_PRIO_PE (NORMALPRIO - 1)
+#define PDB_PRIO_PRL (PDB_PRIO_PE - 1)
+#define PDB_PRIO_PRL_INT_N (PDB_PRIO_PRL - 1)
+
+
+#endif /* PDB_PRIORITIES_H */

src/led.c

 
 void pdb_led_run(void)
 {
-    pdb_led_thread = chThdCreateStatic(waLED, sizeof(waLED), PDB_PRIO_LED, LED,
+    pdb_led_thread = chThdCreateStatic(waLED, sizeof(waLED), PDBS_PRIO_LED, LED,
             NULL);
 }

src/main.c

 #include "shell.h"
 #include "usbcfg.h"
 
-#include "priorities.h"
 #include "led.h"
 #include "device_policy_manager.h"
 #include "policy_engine.h"

src/priorities.h

  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef PDB_PRIORITIES_H
-#define PDB_PRIORITIES_H
+#ifndef PDBS_PRIORITIES_H
+#define PDBS_PRIORITIES_H
 
 
 #include <ch.h>
 
-/* PD Buddy thread priorities */
-#define PDB_PRIO_PE (NORMALPRIO - 1)
-#define PDB_PRIO_PRL (PDB_PRIO_PE - 1)
-#define PDB_PRIO_PRL_INT_N (PDB_PRIO_PRL - 1)
+/* PD Buddy Sink thread priorities */
+#define PDBS_PRIO_LED HIGHPRIO
 
-#define PDB_PRIO_LED HIGHPRIO
 
-
-#endif /* PDB_PRIORITIES_H */
+#endif /* PDBS_PRIORITIES_H */