feat: add .editorconfig file

.editorconfig

@@ -0,0 +1,26 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors or IDEs
+# http://editorconfig.org
+root = true
+
+# All files
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+# Tab indentation (no size specified)
+[Makefile]
+indent_style = tab
+
+[*.{c,h,cpp,hpp}]
+indent_size = 2
+
+[*.rs]
+indent_size = 2