Fix homunculus state crashes

[Henrybk]

This fixes issue 2 of #3919

Issue 1 must still be fixed.

I think a good solution would be to add 2 new checks for checkSelfCondition:
_homunculus_noinfo_dead: is only positive when $char->{homunculus_info}{dead} is undefined
_homunculus_noinfo_resting: is only positive when $char->{homunculus_info}{vaporized} is undefined

So we could make some useSelfSkills cleverly to fix the issue like:
useSelf_skill Resurrect Homunculus {
homunculus 0
homunculus_noinfo_dead 1
}

If it works, great, homun is alive, if it fails we now know $char->{homunculus_info}{dead} is 0. Then we can use:

useSelf_skill Call Homunculus {
homunculus 0
homunculus_noinfo_resting 1
}

If it works, great, homun is alive, if it fails we now know $char->{homunculus_info}{vaporized} is 0.

[ya4ept]

@Henrybk please add a description on this page:
https://openkore.com/wiki/homunculus_noinfo_dead