Which is the license management solution that you would recommend. Given the following feature requirements,<p>1.Metered Licensing (hard+soft limits)<p>2.Single User Fixed Duration License (FDL)<p>3.Perpetual Single User License<p>4. Aggregate Use time license (Time trial)<p>5. API for mobile, web and legacy integration<p>6.API for integrating to reporting solutions<p>7.Self service portal for customer's customer<p>8.Multi-tenant configuration support