Fixed several fields that were being left blank in header, as well as adding code to pad sections so that there is no gap betwee them.  this seems to be required by pe files.

fixed eh-frame-start-addr output to decimal, instead of it coming out as sometimes hex and decimal, which confused the assembler what we meant

naive solution

See merge request allzp/zipr!18

Fixed de_end_loc not being set correctly when plugin places entry but not instruction.

See merge request allzp/zipr!17