Bump bundled libarchive version to 3.5.2

- Update bunlded libarchive version used on Windows/Mac
- Enable requested zstd support while we are at it. Closes #211

dependencies/libarchive-3.5.2/doc/text/archive_write_data.3.txt

@@ -0,0 +1,52 @@
+ARCHIVE_WRITE_DATA(3)	 BSD Library Functions Manual	 ARCHIVE_WRITE_DATA(3)
+
+NAME
+     archive_write_data, archive_write_data_block — functions for creating ar‐
+     chives
+
+LIBRARY
+     Streaming Archive Library (libarchive, -larchive)
+
+SYNOPSIS
+     #include <archive.h>
+
+     la_ssize_t
+     archive_write_data(struct archive *, const void *, size_t);
+
+     la_ssize_t
+     archive_write_data_block(struct archive *, const void *, size_t size,
+	 int64_t offset);
+
+DESCRIPTION
+     archive_write_data()
+	     Write data corresponding to the header just written.
+
+     archive_write_data_block()
+	     Write data corresponding to the header just written.  This is
+	     like archive_write_data() except that it performs a seek on the
+	     file being written to the specified offset before writing the
+	     data.  This is useful when restoring sparse files from archive
+	     formats that support sparse files.  Returns number of bytes writ‐
+	     ten or -1 on error.  (Note: This is currently not supported for
+	     archive_write handles, only for archive_write_disk handles.
+
+RETURN VALUES
+     This function returns the number of bytes actually written, or a negative
+     error code on error.
+
+ERRORS
+     Detailed error codes and textual descriptions are available from the
+     archive_errno() and archive_error_string() functions.
+
+BUGS
+     In libarchive 3.x, this function sometimes returns zero on success in‐
+     stead of returning the number of bytes written.  Specifically, this oc‐
+     curs when writing to an archive_write_disk handle.  Clients should treat
+     any value less than zero as an error and consider any non-negative value
+     as success.
+
+SEE ALSO
+     tar(1), archive_write_finish_entry(3), archive_write_set_options(3),
+     libarchive(3), cpio(5), mtree(5), tar(5)
+
+BSD			       February 28, 2017			   BSD