Added .editorconfig file.

.editorconfig

@@ -0,0 +1,47 @@
+# Editor config file for this project
+
+# root: special property that should be specified at the
+#       top of the file outside of any sections. Set to
+#       "true" to stop .editorconfig files search on
+#       current file.
+#
+root = true
+
+# indent_style: set to "tab" or "space" to use hard tabs
+#               or soft tabs respectively.
+#
+indent_style = tab
+
+# indent_size: a whole number defining the number of
+#              columns used for each indentation level and
+#              the width of soft tabs (when supported).
+#
+indent_size = 4
+
+# tab_width: a whole number defining the number of columns
+#            used to represent a tab character. This defaults
+#            to the value of indent_size and doesn't usually
+#            need to be specified.
+tab_width = 4
+
+# end_of_line: set to "lf", "cr", or "crlf" to control how
+#              line breaks are represented.
+#
+end_of_line = lf
+
+# charset: set to "latin1", "utf-8", "utf-8-bom", "utf-16be"
+#          or "utf-16le" to control the character set.
+#
+charset = utf-8
+
+# trim_trailing_whitespace: set to "true" to remove any
+#          whitespace characters preceding newline characters
+#          and "false" to ensure it doesn't.
+#
+trim_trailing_whitespace = true
+
+# insert_final_newline: set to "true" to ensure file ends
+#          with a newline when saving and "false" to ensure
+#          it doesn't.
+#
+insert_final_newline = true