Make relative imports more readable & writable?

[mfisher87]

Maybe just me, but I find relative imports really hard to read and write :)

import { loadGeoTIFFWithCache } from '../../../../tools';

In past projects, I've configured the typescript compiler with some custom paths. We could do something like:

    "paths": {
      "@base/*": ["./packages/base/src/*"]
    },

Then change our imports:

import { loadGeoTIFFWithCache } from '@base/tools';