Add new Power Query functions and update settings for improved data handling

power-query/specific/fNormalizeSN.m

@@ -0,0 +1,9 @@
+let 
+    Source = (anySN as nullable any) as text => let
+        TrimSN = try Text.Trim(Text.From(anySN)) otherwise "-36002",
+        MarkNulls = if (TrimSN = null) or (TrimSN = "") or (TrimSN = "0") then "-36001" else TrimSN,
+        Normalize = try Text.Upper(MarkNulls) otherwise "-36002"
+    in
+        Normalize 
+in 
+    Source