Resolve conflicts in Designer.cs, Modify Typo

Also Add header to the file

Author: yutingc

Rules/Strings.Designer.cs

@@ -658,10 +658,10 @@
     <value>Use ShouldProcess For State Changing Functions</value>
   </data>
   <data name="UseShouldProcessForStateChangingFunctionsDescrption" xml:space="preserve">
-    <value>Functions that have verbs like New, Start, Stop, Set, Reset that change systme state should support 'ShouldProcess'</value>
+    <value>Functions that have verbs like New, Start, Stop, Set, Reset that change system state should support 'ShouldProcess'.</value>
   </data>
   <data name="UseShouldProcessForStateChangingFunctionsError" xml:space="preserve">
-    <value>Function ’{0}’ has verb that could change system state. Therefore, the function has to support 'ShouldProcess'</value>
+    <value>Function ’{0}’ has verb that could change system state. Therefore, the function has to support 'ShouldProcess'.</value>
   </data>
   <data name="UseShouldProcessForStateChangingFunctionsName" xml:space="preserve">
     <value>UseShouldProcessForStateChangingFunctions</value>

Rules/Strings.resx

@@ -1,4 +1,16 @@
-using System;
+//
+// Copyright (c) Microsoft Corporation.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Management.Automation;