dev: add pandoc and vim-pandoc

derivations/dev/vim-pandoc.nix

@@ -0,0 +1,22 @@
+{ commonRC
+,
+... } @ args :
+
+import ../../pkg-configuration/vim-derivates/vim.nix (args // {
+  name = "vim-for-pandoc";
+  additionalRC = commonRC + ''
+    set statusline+=%#warningmsg#
+    set statusline+=%{SyntasticStatuslineFlag()}
+    set statusline+=%*
+
+    let g:syntastic_always_populate_loc_list = 1
+    let g:syntastic_auto_loc_list = 1
+    let g:syntastic_check_on_open = 1
+    let g:syntastic_check_on_wq = 0
+ '';
+ additionalPlugins = [
+    "vim-pandoc"
+    "vim-pandoc-syntax"
+    "vimpreviewpandoc"
+ ];
+})