Implement xlat generator

* bootstrap: New file.
* xlat/gen.sh: Likewise.
* Makefile.am: Include xlat/Makemodule.am
(EXTRA_DIST): Add $(XLAT_INPUT_FILES), $(XLAT_HEADER_FILES), and
xlat/gen.sh.
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 0000000..196d8e4
--- /dev/null
+++ b/bootstrap
@@ -0,0 +1,3 @@
+#!/bin/sh
+./xlat/gen.sh
+exec autoreconf -f -i