Add support for parameters filtering

Features
=======
Add filtering parameters

Example
========

Filter content of the expand parameters to allow only 'option1' and 'option2' string.  It assume expand contains a list tokens delimited by a period
Check the spec of other available options

```
acl_user privileges: {
  index: true
},
filters: {
  expand: [ 'option1', 'option2' ]
}
```