* refactor(types): refactor and add tests for checking Types
* remove unused
* uncomment
* use `Handler` in validator middleware
* remove unused
* create `src/validator` dir and move some files into it
* add the case that the context is in `validator`
* rename `D` to `S`
# BREAKING CHANGES!!
Now, builtin middleware are not in main package. You can't use `Middleware.logger()` method. Call sub modules if needed:
```js
import { Hono } from 'hono'
import { poweredBy } from 'hono/powered-by'
import { logger } from 'hono/logger'
const app = new Hono()
app.use('*', poweredBy())
app.use('*', logger())
```
Closes: #80
---
* feat: builtin middleware as sub module
* fixed middleware
* Update readme
* Add types
* New gif
