Add .editorconfig

based on rJavaEnv.Rproj

Author: chainsawriot

.Rbuildignore

@@ -25,3 +25,4 @@
 ^revdep$
 ^man/figures/card.png$
 ^tools$
+^\.editorconfig$

.editorconfig

@@ -0,0 +1,18 @@
+root = true
+
+[*]
+charset = utf8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+
+[*.{r,R,rmd,Rmd,qmd}]
+indent_size = 2
+trim_trailing_whitespace = true
+
+[*.{cpp,h,hpp}]
+indent_size = 2
+trim_trailing_whitespace = true
+
+[Makefile]
+indent_style = tab