Add git attributes and editor config

.editorconfig

@@ -0,0 +1,15 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{json,jsonc,json5}]
+indent_style = space
+indent_size = 4
+
+[*.{yml,yaml}]
+indent_style = space
+indent_size = 2

.gitattributes

@@ -0,0 +1,9 @@
+* text=auto
+
+# Temporarily highlight luau as normal lua files
+# until we get native linguist support for Luau
+*.luau linguist-language=Lua
+
+# Ensure all lua files use LF
+*.lua  eol=lf
+*.luau eol=lf