commit vlm/asn1c e9e346064b67a0946

Committed "aper: workaround for undefined enumeration indexes" by Krzysztof Witek <kwitek@kw-net.com>
commit a12c7fa47901bf6dee4cc21702efa6e7ecc1bb4f from vlm/asn1c #115

Incomplete: Various fixes

* Empty fragment encoding
* Dereference DEFAULT to get the actual value
* Don't write length bits for small fixed-sized sequence-of
* Index encoding in choice extensions
* Only align when range == 256

converter-example.c.

They're disabled by default, but can be turned on by defining USE_OLDER_APER_NSNNWN.
The main difference is - these do not use "range" argument, but receive it as dummy.

    In some cases an INTEGER overflow during parsing is not detected
    and incorrect value is returned to the decoder instead of an error.
    Reported by Nika Pona <npona@digamma.ai>.
    (Severity: low; Seuciry impact: medium).

Fix compiler redefinition warnings for __EXTENSIONS__

per_support: use intmax_t for integer constraints

long causes trouble on 32bit systems, see https://github.com/riebl/vanetza/issues/78

Fix for 32bit crossdev environment tests