[Feature] Thickness attribute in ctf class

[jojoelfe]

Description

This adds the sample_thickness attribute to the ctf class, which can be used to generate CTFs affected by sample thickness using the EvaluateWithThickness methods as described by Tichelaar et.al. Ultramicroscopy 2020.

There are some sanity checks in console_test. I also added some convenience functions to the curve class and a new test app called gui_test. For now it just shows a plot of a node-containing ctf, but I thought it could be extended to test other graphical things.

I have rebased my feature branch to be current with the master branch using to minimize conflicts and headaches

• [x] yes
• [ ] no

Which compilers were tested

• [ ] g++
• [x] icpc
• [ ] clang
• [ ] other (please specify)

These changes are isolated to the

• [ ] gui
• [ ] core library
• [ ] gpu core library
• [ ] program it modifies

How has the functionality been tested?

Please describe the tests that you ran to verify your changes. Please also note any relevant details for your test configuration.

• [ ] Tested manually from GUI
• [x] Tested manually from CLI
• [x] Passed console tests
• [ ] Passed samples functional testing
• [ ] other (please specify)

Checklist:

• [ ] I have not changed anything that did not need to be changed
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, (w.r.t. why), particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation {Ok to pass for now}
• [ ] My changes generate no new warnings
• [ ] Any dependent changes have been merged and published in downstream modules

[bHimes]

@jojoelfe poke on merging this if you are happy