Minor changes to control files from Tools package rework
diff --git a/src/csharp/.editorconfig b/src/csharp/.editorconfig
index 7bc2bcc..fabce7f 100644
--- a/src/csharp/.editorconfig
+++ b/src/csharp/.editorconfig
@@ -1,5 +1,6 @@
 root = true
 [**]
+charset = utf-8  ; Implies no BOM.
 end_of_line = LF
 indent_style = space
 indent_size = 4