Finish case sensitivity settings in sub routers

[jthomerson]

See

lambda-express/src/chains/SubRouterProcessorChain.ts

Line 12 in 1139fa8

// TODO: case sensitivity settings (strict and end need to remain false here):

[yokuze]

It turns out that, in Express, route settings are not inherited from parent to child routers. In this example:

const router1 = express.Router({ caseSensitive: true }),
      router1 = express.Router();

router2.get('/World', (req, resp, next) => { console.log('uppercase /World'); next(); });
router2.get('/world', (req, resp, next) => { console.log('lowercase /world'); next(); });
router2.get('*', (req, resp) => { resp.send('world'); });

router1.use('/hello', router2);
app.use('/', router1);

router2 does not inherit router1's case sensitivity settings.

We should adjust our current behavior to avoid inheriting router settings.