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

gitportable/mingw64/share/doc/git-doc/git-hash-object.adoc

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+git-hash-object(1)
+==================
+
+NAME
+----
+git-hash-object - Compute object ID and optionally create an object from a file
+
+
+SYNOPSIS
+--------
+[verse]
+'git hash-object' [-t <type>] [-w] [--path=<file> | --no-filters]
+		[--stdin [--literally]] [--] <file>...
+'git hash-object' [-t <type>] [-w] --stdin-paths [--no-filters]
+
+DESCRIPTION
+-----------
+Computes the object ID value for an object with specified type
+with the contents of the named file (which can be outside of the
+work tree), and optionally writes the resulting object into the
+object database.  Reports its object ID to its standard output.
+When <type> is not specified, it defaults to "blob".
+
+OPTIONS
+-------
+
+-t <type>::
+	Specify the type of object to be created (default: "blob"). Possible
+	values are `commit`, `tree`, `blob`, and `tag`.
+
+-w::
+	Actually write the object into the object database.
+
+--stdin::
+	Read the object from standard input instead of from a file.
+
+--stdin-paths::
+	Read file names from the standard input, one per line, instead
+	of from the command-line.
+
+--path::
+	Hash object as if it were located at the given path. The location of
+	the file does not directly influence the hash value, but the path is
+	used to determine which Git filters should be applied to the object
+	before it can be placed in the object database.  As a result of
+	applying filters, the actual blob put into the object database may
+	differ from the given file. This option is mainly useful for hashing
+	temporary files located outside of the working directory or files
+	read from stdin.
+
+--no-filters::
+	Hash the contents as is, ignoring any input filter that would
+	have been chosen by the attributes mechanism, including the end-of-line
+	conversion. If the file is read from standard input then this
+	is always implied, unless the `--path` option is given.
+
+--literally::
+	Allow `--stdin` to hash any garbage into a loose object which might not
+	otherwise pass standard object parsing or git-fsck checks. Useful for
+	stress-testing Git itself or reproducing characteristics of corrupt or
+	bogus objects encountered in the wild.
+
+GIT
+---
+Part of the linkgit:git[1] suite