func NewMVNLookup(verbose bool) PackageResolver {
	return &MVNLookup{Packages: []MVNPackage{}, Verbose: verbose}
}
NewNPMLookup constructs an `MVNLookup` struct and returns it.
package main
import (
	"encoding/json"
	"encoding/xml"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	"strings"
	"time"
)
type MVNLookup struct {
	Packages []MVNPackage
	Verbose  bool
}
type MVNPackage struct {
	Group string
	Artifact string
	Version string
}