Add project.json for PackageManagement assemblies and make it build

src/Microsoft.PackageManagement.MetaProvider.PowerShell/project.json

@@ -0,0 +1,52 @@
+{
+	"name": "Microsoft.PackageManagement.MetaProvider.PowerShell",
+	"version": "1.0.0-*",
+	"authors": ["quoct"],
+
+	"buildOptions": {
+		"warningsAsErrors": true
+	},
+
+	"configurations": {
+		"Linux": {
+			"buildOptions": {
+				"define": ["LINUX"]
+			}
+		}
+	},
+
+	"dependencies": {
+		"System.Management.Automation": "1.0.0-*",
+		"Microsoft.PackageManagement": "1.0.0-*"
+	},
+
+	"frameworks": {
+		"net451": {
+			"frameworkAssemblies": {
+				"System.Runtime": "",
+				"System.Xml": "",
+				"System.Xml.Linq": "",
+				"System.Numerics": "",
+				"System.Data": "",
+				"System.DirectoryServices": "",
+				"System.Security": "",
+				"System.Transactions": "",
+				"System.Runtime.Serialization": "",
+				"System.Management": "",
+				"System.Configuration": "",
+				"System.Configuration.Install": "",
+				"System.Net": "",
+				"System.Net.Http": "",
+				"System.IO.Compression": "",
+				"System.IO.Compression.FileSystem": ""
+			}
+		},
+
+		"netstandard1.5": {
+			"imports": ["dnxcore50"],
+			"buildOptions": {
+				"define": ["CORECLR"]
+			}
+		}
+	}
+}