UAVCAN: Move into lib directory

Tools/px4params/srcparser.py

@@ -103,7 +103,7 @@ class SourceParser(object):
         Returns list of supported file extensions that can be parsed by this
         parser.
         """
-        return ["cpp", "c"]
+        return [".cpp", ".c"]
 
     def Parse(self, contents):
         """

Tools/px4params/srcscanner.py

@@ -26,5 +26,10 @@ class SourceScanner(object):
         parser.Parse method.
         """
         with codecs.open(path, 'r', 'utf-8') as f:
-            contents = f.read()
+            try:
+                contents = f.read()
+            except:
+                contents = ''
+                print('Failed reading file: %s, skipping content.' % path)
+                pass
         parser.Parse(contents)