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

gitportable/usr/share/vim/vim91/ftplugin/pbtxt.vim

@@ -0,0 +1,17 @@
+" Vim filetype plugin file
+" Language:             Protobuf Text Format
+" Maintainer:           Lakshay Garg <lakshayg@outlook.in>
+" Last Change:          2020 Nov 17
+"                       2023 Aug 28 by Vim Project (undo_ftplugin)
+" Homepage:             https://github.com/lakshayg/vim-pbtxt
+
+if exists("b:did_ftplugin")
+  finish
+endif
+let b:did_ftplugin = 1
+
+setlocal commentstring=#\ %s
+
+let b:undo_ftplugin = "setlocal commentstring<"
+
+" vim: nowrap sw=2 sts=2 ts=8 noet