Vector Pascal Compiler Code

the armcg now generates syntactically correct assembler for system.pas
the rtl has had a couple of functions added to handle things that were available
as instructions on the intel machines
vpc has had a line added to recognise the OS type associated with odroid arm linu

First version of arm 32 which generates assembler on an intel machine, not yet tested on arm

allow void as a format and allow :=(a,b) as a way of generating Assign(a,b)