for ARM64, fix saving and restoring of return addresses in calls to strlen and sprintf, fix register in code before build_string

Fix size of arrays created with create_arrayR32 on x86-64

See merge request clean-compiler-and-rts/run-time-system!6

Add packed arrays support for 64-bit ARM

See merge request clean-compiler-and-rts/run-time-system!5

Add packed arrays support (_create_arrayI32, create_arrayI32, _create_arrayR32, create_arrayR32) for arm64

Add packed arrays support to the x86 runtime system

See merge request clean-compiler-and-rts/run-time-system!4

Add packed arrays support (_create_arrayI32, create_arrayI32, _create_arrayR32, create_arrayR32) for x86

Allow building a 32-bit run-time system on a 64-bit (linux) platform

See merge request clean-compiler-and-rts/run-time-system!3

for ARM64 add missing line for commit 9171ee54 in fast_ap_2_2_ code (special case of fast_ap)

prevent stack overflow errors for exceptions that are not caused by a stack overflow on 64 bit windows

on arm64 fix add_empty_node_* calls by fast_ap, x30 was overwritten, fast_ap now copies it to x29 and add_empty_node_* restores it, this a quick fix, saving x30 before the call would probably be better, but this requires more changes to the code generator and runtime system (and increases the size of executable)

Callgraph profiling: fix recovery of cost centre in nodes with arity < 0 (after 9a0566f8)

See merge request clean-compiler-and-rts/run-time-system!1