Add AMD module ID support

[andvgal]

At the moment, pure-cjs generates anonymous AMD modules, event when "exports" is set.

1. However, global and amd type modules are not necessary references by the same identifier from foreign code. That is the reason we should add a new parameter like "amdId". Example:
   • global: the module may be referenced as "$shortcut"
   • amd: the same module may be referenced as "project-part"
2. If "amdId" options is set, pure-cjs should use it as the first parameter in the "define( amdId, deps, factory )" statement