move list routing and static routing to src/routing directories

--HG--
rename : src/internet-stack/ipv4-list-routing.cc => src/routing/list-routing/ipv4-list-routing.cc
rename : src/internet-stack/ipv4-list-routing.h => src/routing/list-routing/ipv4-list-routing.h
rename : src/node/ipv4-routing-table-entry.cc => src/routing/static-routing/ipv4-routing-table-entry.cc
rename : src/node/ipv4-routing-table-entry.h => src/routing/static-routing/ipv4-routing-table-entry.h
rename : src/internet-stack/ipv4-static-routing-impl.cc => src/routing/static-routing/ipv4-static-routing.cc
rename : src/node/ipv4-static-routing.h => src/routing/static-routing/ipv4-static-routing.h

src/wscript

@@ -29,6 +29,8 @@ all_modules = (
     'applications/udp-echo',
     'routing/olsr',
     'routing/global-routing',
+    'routing/static-routing',
+    'routing/list-routing',
     'mobility',
     'devices/wifi',
     'helper',