Memory leak and missing privilege in Privilege check module.

[JohnLaTwC]

Issue 1

Memory leak due to missing call to Marshal.FreeHGlobal for TokenInformation.

sitrep/SitRep/Checks/Permissions/Privileges.cs

Line 41 in 45d703b

IntPtr TokenInformation = Marshal.AllocHGlobal(TokenInfLength);

Issue 2

I also think you should add SeManageVolumePrivilege to the specialPrivileges list.

See (https://twitter.com/0gtweet/status/1303427935647531018)

                var specialPrivileges = new List<string>()
            {
                "SeSecurityPrivilege",
                "SeTakeOwnershipPrivilege",
                "SeLoadDriverPrivilege",
                "SeBackupPrivilege",
                "SeRestorePrivilege",
                "SeDebugPrivilege",
                "SeSystemEnvironmentPrivilege",
                "SeImpersonatePrivilege",
+                "SeManageVolumePrivilege",
                "SeTcbPrivilege"
            };

sitrep/SitRep/Checks/Permissions/Privileges.cs

Line 26 in 45d703b

var specialPrivileges = new List<string>()