Allow to specify modules for which builder doesn't raise dependency error
    
    One can specify module ids provided by other means (already built layer file) in providedMids array of build profile file's package section. Builder then ignores dependency errors for specified modules. This allows to build layers without source codes of their dependencies, with no expected errors raised.
    
    Example:
    
    packages:[
        {
            name: "freeipa",
            location: "freeipa",
            providedMids: [
                'dojo/_base/declare',
                'dojo/_base/lang',
                'dojo/_base/array',
                'dojo/Stateful'
                //etc
            ]
        }
    ],