update the Arduino demo

Merge remote-tracking branch 'origin/6-can-not-iterate-over-the-plus-node-as-long-as-it-is-named-plus'

nb: i should really add 'make test' in the git commit hooks!

update the Arduino demo

Remove unused files along the way (myGenlex.ml/mli)

By not catching errors, rdbg and (thus) lurette were silently do nothing
in presence of errors in Lustre files.

The idea is to be able to take into account clock in node profiles
when generating the main simulation loop, and to avoid to read inputs
that are not present.

add and install an alias to lus2lic name lv6.

lus2lic --gen-autotest now overrides existing _oracle*.lus and _env*.lut files

The generated code for tests on boolean output was wrong. Indeed, it
was generating

  if (o1 == _true) {

instead of

  if (*o1 == _true) {

nb : a warning was emited

Add code to support empty arrays (not yet working)

BTW, fix iterator handling which was not working from SocExecDbg

BTW, fonctionalise the corresponding non-debug code.

+ fix a (invisible) bug in lic2soc: the same action was generated twice.

Basically, I have added the missing fields