Add sort, fields, skip and limit inputs

[dashersw]

Queries are built up from different sections such as fields, skip, and limit values.
These inputs and functionalities should be added to the app.

The app should also display the generated query as in the example;

db.watches.find({ age: { $gt: 21 } }, { name: 1, age: 1}).sort({ "_id": 1}).skip(90).limit(30)