Added UTImportedTypeDeclarations for PowerShell

Author: abulgatz

Info.plist

@@ -1354,6 +1354,23 @@
 				</array>
 			</dict>
 		</dict>
+		<dict>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>dyn.ah62d4rv4ge81a63v</string>
+			</array>
+			<key>UTTypeDescription</key>
+			<string>PowerShell</string>
+			<key>UTTypeIdentifier</key>
+			<string>org.powershell.source</string>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>ps1</string>
+				</array>
+			</dict>
+		</dict>
 	</array>
 </dict>
 </plist>