configurarion files for editor local variables added

- configuration files for Emacs and Vim added
- plugin for Vim added

.dir-locals.el

+(
+ (nil . (
+	 (indent-tabs-mode . nil)
+	 (require-final-newline . nil)
+	 )
+      )
+ (cmake-mode . (
+           (cmake-tab-width . 4)
+           )
+        )
+ 
+ (c-mode . (
+	    (c-basic-offset . 4)
+	    )
+	 )
+ (c++-mode . (
+	      (c-basic-offset . 4)
+	      )
+	   )
+ )
+

.local.vimrc

+set et ts=4 sw=4 sts=4
\ No newline at end of file

tools/vim/README

+OPAL specific Vim plugin(s)
+==========================
+
+To install these plugins run from this directory:
+
+mkdir -p ~/.vim/pack/opal/
+cp -av start ~/.vim/pack/opal/
+
+and (re-)start Vim.
+

vim-localrc @ c4db6639

+Subproject commit c4db66399f5029885acd2c86d1ce78f0b61dc626