Initial code for TGBA (Transition Generalized B�chi Automata).

Contains tgba_bdd, a BDD-encoded TGBA, and ltl_to_tgba,
a LTL-to-TGBA translator using Couvreur's algorithm.

* src/Makefile.am (SUBDIRS): Add tgba.
(libspot_la_LIBADD): Add tgba/libtgba.la.
* src/tgba/Makefile.am, src/tgba/bddfactory.cc,
src/tgba/bddfactory.hh, src/tgba/dictunion.cc,
src/tgba/dictunion.hh, src/tgba/ltl2tgba.cc, src/tgba/ltl2tgba.hh,
src/tgba/state.hh, src/tgba/statebdd.cc, src/tgba/statebdd.hh,
src/tgba/succiter.hh, src/tgba/succiterconcrete.cc,
src/tgba/succiterconcrete.hh, src/tgba/succlist.hh,
src/tgba/tgba.hh, src/tgba/tgbabddconcrete.cc,
src/tgba/tgbabddconcrete.hh, src/tgba/tgbabddconcretefactory.cc,
src/tgba/tgbabddconcretefactory.hh,
src/tgba/tgbabddconcreteproduct.cc,
src/tgba/tgbabddconcreteproduct.hh, src/tgba/tgbabddcoredata.cc,
src/tgba/tgbabddcoredata.hh, src/tgba/tgbabdddict.cc,
src/tgba/tgbabdddict.hh, src/tgba/tgbabddfactory.hh,
src/tgba/tgbabddtranslatefactory.cc,
src/tgba/tgbabddtranslatefactory.hh: New files.

src/tgba/Makefile.am

@@ -0,0 +1,31 @@
+AM_CPPFLAGS = -I$(srcdir)/..
+AM_CXXFLAGS = $(WARNING_CXXFLAGS)
+
+noinst_LTLIBRARIES = libtgba.la
+libtgba_la_SOURCES = \
+  bddfactory.cc \
+  bddfactory.hh \
+  dictunion.cc \
+  dictunion.hh \
+  ltl2tgba.cc \
+  ltl2tgba.hh \
+  state.hh \
+  statebdd.cc \
+  statebdd.hh \
+  succiter.hh \
+  succiterconcrete.cc \
+  succiterconcrete.hh \
+  tgba.hh \
+  tgbabddconcrete.cc \
+  tgbabddconcrete.hh \
+  tgbabddconcretefactory.cc \
+  tgbabddconcretefactory.hh \
+  tgbabddconcreteproduct.cc \
+  tgbabddconcreteproduct.hh \
+  tgbabddcoredata.cc \
+  tgbabddcoredata.hh \
+  tgbabdddict.cc \
+  tgbabdddict.hh \
+  tgbabddfactory.hh \
+  tgbabddtranslatefactory.cc \
+  tgbabddtranslatefactory.hh