Implemented asm code dumper

In class JitPlatform asm functions dumps
themselves. Also JitPlatform counts amount
of asm commands. That allow you to check
ratio of commands before translation to asm
and after that.
Implemented pointers in executor.

Now commands "pushptr" and "popptr" avalible
in Execution mode. Earlier they were avaliable
just in JIT-compiling mode Manual for these
commands you can find in the comment one
of the earlier commits.