let klayout marker browser read strmxor .. xor.gds.gz, xor.oas result files

[stefanottili]

Feature request:

strmxor doesn't write one of the two text formats that the klayout marker browser can read.
It would be nice if the marker browser could read the strmxor xor.gds.gz or xor.oas output files.

Run strmxor from the command line and view the results using klayout later.