Delays setters and getters not generated by codegen

[ggendro]

Spider version 1.4.1. Generated codegen does not add setters and getters to delays. Instead, adds edges to the delays.

Code example:
test_auto_layout_error.zip
File pi_test_delay.cpp generated by codegen has 3 edges objects when it should have only one. The first edge containing the delay does not define setter and getter as it should.