heimdal: Add 64-bit integer support to ASN.1 compiler, part 2
This adjusts the generated files:
- asn1parse.c, asn1parse.h (although these seem to be generated by the FreeBSD build system too)
- der-protos.h, which needs a bunch of new prototypes. I stole them from a der-protos.h generated by the upstream build system, which uses a perl script for this.
- adjust printf format strings for int64_t. Upstream uses %lld for this, but that is not portable, and leads to lots of -Werror warnings.