Rip code loading

README.md

System.require uses the following loaders:

package loader (only if module is part of a package)

load package module relative to ./lib/* (first-party) or ./vendor/**/lib/* (third-party)

System.require('package/file')

filesystem loader (available in a package or not)

load (non-)package module relative to current module

System.require('./some/other/file')

load (non-)package module at absolute path

System.require('/opt/file')

url loader (available in a package or not)

load module over network (should not be used except from trusted, secure network)

System.require('https://www.example.com/path/file')