Add no canfestival option

[ronnie-kaczynski-laerdal]

I added command line arg that will give the option to generate an extra set of .h/.c files which do not include any reference to canfestival (the #include "data.h" and the types).

I ran odg convert on the same .od file in main and in my branch and a diff shows that there is no difference between before and after my changes. I've attached the files to this PR, notice that the only diff is in the #ifndef sections.

I had to rename the files because GitHub does not allow me to upload .c and .h files
abc_new_c.txt
abc_new_h.txt
abc_new_objectdefines_h.txt
abc_objectdefines_h.txt
abc_c.txt
abc_h.txt

[LMOleksandr-Radchenko]

Scary stuff
Also, if the PR is in draft, the jira ticket should not be "in review"

[LMOleksandr-Radchenko]

I would not go as far as to say that visible_string is a char. It should either be char* (which probably would cause issues in other places?) or the tool should ignore it with an error (I don't think there are those in the callback right now, are there?

[ronnie-kaczynski-laerdal]

the global object which are of type_visible string are defined with a char array and not char*

[LMOleksandr-Radchenko]

Here I will just assume you tested it somehow, as I still don't follow how char is the same as char[]

[ronnie-kaczynski-laerdal]

We have decided that we would prefer to merge these changes into main if @sveinse and @aleksander-ferkingstad are okay with that. If not we can just keep this branch alive and change our build system to use it.

[sveinse]

This is a public tool, so we will not integrate these changes into the python-objdictgen tool.