made the pack completely portable and wrote relevent bat files to go with it

gitportable/usr/share/vim/vim91/macros/less.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+# Shell script to start Vim with less.vim.
+# Read stdin if no arguments were given and stdin was redirected.
+
+if test -t 1; then
+  if test $# = 0; then
+    if test -t 0; then
+      echo "Missing filename" 1>&2
+      exit
+    fi
+    vim --cmd 'let no_plugin_maps = 1' -c 'runtime! macros/less.vim' -
+  else
+    vim --cmd 'let no_plugin_maps = 1' -c 'runtime! macros/less.vim' "$@"
+  fi
+else
+  # Output is not a terminal, cat arguments or stdin
+  if test $# = 0; then
+    if test -t 0; then
+      echo "Missing filename" 1>&2
+      exit
+    fi
+    cat
+  else
+    cat "$@"
+  fi
+fi