Add .editorConfig for consistency (exercism#104)

Refrence Issue exercism#92

.editorconfig

@@ -0,0 +1,21 @@
+
+#Editor Config is So awesome
+
+#Indicate this is the config of the root
+root = true
+
+# Apply the following rules to these file types
+[{*.{cpp,cc,c,h,hpp,txt}}]
+end_of_line = lf                #Unix type line endings
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+trim_trailing_whitespace = true
+
+#Separate Config for YML files
+[*.yml]
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true