First cut of KeyValuePairFile

Author: dscottraynsford

.vscode/settings.json

@@ -8,5 +8,7 @@
     "powershell.codeFormatting.whitespaceAroundOperator": true,
     "powershell.codeFormatting.whitespaceAfterSeparator": true,
     "powershell.codeFormatting.ignoreOneLineBlock": false,
-    "powershell.codeFormatting.alignPropertyValuePairs": true
-}
+    "powershell.codeFormatting.alignPropertyValuePairs": true,
+    "files.trimTrailingWhitespace": true,
+    "files.insertFinalNewline": true
+}

CHANGELOG.md

@@ -4,3 +4,5 @@
 
 - MSFT_ReplaceText:
   - Created new resource for replacing text in text files.
+- MSFT_KeyValuePairFile:
+  - Created new resource for setting key value pairs in text files.