Add editorconfig

Author: DecimalTurn

.editorconfig

@@ -0,0 +1,21 @@
+# EditorConfig is awesome: http://EditorConfig.org
+# Template from: https://github.com/DecimalTurn/VBA-on-GitHub
+
+# top-most EditorConfig file
+root = true
+
+# Properties for VBA, VB6 and twinBASIC file extensions
+[*.{bas,cls,frm,vba,doccls,ctl,dsr,twin,tbform}]
+indent_style = space
+indent_size = 4
+end_of_line = crlf
+# Avoid line too long error (https://learn.microsoft.com/en-us/office/vba/language/reference/user-interface-help/line-too-long):
+max_line_length = 1023
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# The character set property isn't widely supported, but you can still add it. It just won't do anything if unsupported by your editor.
+# Reference: https://github.com/editorconfig/editorconfig/issues/209#issuecomment-445241830
+# Eg.:
+# charset = windows-1252
+# charset = us-ascii