Cache glob

[blond]

If we build several artifacts with similar patterns, scan will be repeat for each patterns.

const tartifacts = require('tartifacts');

tartifacts([
    {
        dest: 'artifact-1',
        includes: 'sources/**'  // first scan
    },
    {
        dest: 'artifact-2',
        includes: ['sources/**', 'exlib/**']  // second scan of 'sources/**' pattern
    }
]);

We can cache results of first scan and share them to second artifact.

[blond]

/cc @rndD