stats: rename structures and attribute for concistency
* src/taalgos/stats.cc, src/taalgos/stats.hh
(tgba_statistics::transitions, tgba_sub_statistics::sub_transitions):
Rename ...
(twa_statistics::edges, twa_sub_statistics::transitions): ... to
these.
* NEWS: Mention it.
* src/bin/common_aoutput.hh, src/bin/ltlcross.cc,
src/tests/checkta.cc, src/tests/complementation.cc,
src/tests/ikwiad.cc, src/tests/ltl2tgba.test,
src/tests/neverclaimread.test, src/tests/randtgba.cc,
src/tests/renault.test, src/tests/wdba2.test, src/twaalgos/dtbasat.cc,
src/twaalgos/dtgbasat.cc, src/twaalgos/stats.cc,
src/twaalgos/stats.hh, wrap/python/ajax/spotcgi.in: Adjust.
4a91fccc33