fixed indents

decls are created now last
moved entity cache to isa, so Fp constants are only created once

- reorganized most instructions to have _i and normal forms
- added support for shift-operand and condition
- removed unused double fp opcodes, use mode instead (not working yet)
- new constant create algorithm creates shorter sequences
- dumper now writes immediate operands

generates add/sub esp

add comments for the supported command line options

removed two extra opcode number at start end end
generates get_<arch>_irn_opcode()
generates #ifdefs's around header file
calls <arch>_register_additional_opcodes only if $additional_opcodes is set

more comments added

fixed copy inserter bug
changed debugging stuff