configure.ac: Add libtool, config header
configure.ac: Add libtool, config header

Add AC_CONFIG_SRCDIR and AC_CONFIG_HEADERS. Add LT_INIT and LT_PREREQ.
Add tests/lib/Makefile.am to AC_CONFIG_FILES array.

alech/libquvi-scripts,alech/libquvi-scripts,legatvs/libquvi-scripts,legatvs/libquvi-scripts