Given an object of modules with dependencies
generate a stats object with the usage counts:
{
'A': { count: 2 },
'B': { count: 10 }
}
@param {object} modules An object of modules with dependencies
@returns {object} An object with the usage stats for each dependency
function generateUsageStats( modules ) {
	function getCamelCasedDepName( dep ) {
		return dep
			.split( '/' )
			.map( function( part ) {
				return _.camelCase( part );
			} )
			.join( '/' );
	}
	return Object.keys( modules ).reduce( function( target, moduleName ) {
		var deps = modules[ moduleName ];
		deps.forEach( function( dependency ) {
			const camelCasedDepName = getCamelCasedDepName( dependency );
			if ( ! target[ camelCasedDepName ] ) {
				target[ camelCasedDepName ] = { count: 0 };
			}
			target[ camelCasedDepName ].count += 1;
		} );
		return target;
	}, {} );
}