brisky-is-plain-obj


#### var plain = isPlain(obj)

Checks whether an object is a plain object (excludes streams, buffers, vigour-base objects and null)
- obj (object) - the object to check
- returns (boolean) plain - true if obj is a plain object, false otherwise

``javascript
const isPlain = require('brisky-is-plain-obj')
isPlain({}) // true
isPlain(new Base({})) // false
``