Automatically setup can-set algebra for Feathers

[marshallswain]

Merge in an algebra that enables the special Feathers query syntax.

Object.assign({
  $sort: function(){},
  $limit: function(){},
  $skip: function(){}
}, this.algebra);

It would need to support the attributes on these two pages:

• https://docs.feathersjs.com/databases/pagination.html
• https://docs.feathersjs.com/databases/querying.html