add a speedprofile for walking, and a test for basic way accessability

speedprofiles/foot.ini

@@ -0,0 +1,28 @@
+[foot]
+	accessTag		= foot
+	defaultSpeed	= 5
+	obeyOneways		= no
+	useRestrictions = no
+	obeyBollards	= no
+
+	primary         = 5
+	primary_link    = 5
+	secondary       = 5
+	secondary_link  = 5
+	tertiary        = 5
+	residential     = 5
+	unclassified    = 5
+	living_street   = 5
+	road		    = 5
+	service         = 5
+	track			= 5
+	path			= 5
+	cycleway		= 5
+	footway			= 5
+	pedestrian		= 5
+	pier			= 5
+	steps			= 2
+	
+	ferry			= 5
+
+	excludeFromGrid = ferry