bare-bones linear interpolation function
npm install lerp 
In the fashion of small modules and saving keystrokes; this is a bare-bones linear interpolation function. Same as mix in GLSL.
``js
var lerp = require('lerp')
var res = lerp(a, b, t);
`
`lerp(start, end, alpha)``
Interpolates from start to end using the given alpha.
MIT, see LICENSE.md for details.