wxGUI: Fixed star imports in wxdisplay.py

[arohanajit]

Fixed F405 in wxdisplay.py by specifying imports

[petrasovaa]

UNCHECKED and String can't be imported from ctypes and please make sure the CI checks are ok

[echoix]

UNCHECKED and String can't be imported from ctypes and please make sure the CI checks are ok

How did you find it/check it? (To find a way to have it pointed to us, with a tool or something, I didn't catch it myself). Otherwise, how does one come up with a non-existing import in a PR?

[arohanajit]

UNCHECKED and String can't be imported from ctypes and please make sure the CI checks are ok

I have recategorised them. As for CI, its failing because CI for this flake8 is dependant upon #4973 . I think post merge of that PR, CI here should fix itself

[petrasovaa]

UNCHECKED and String can't be imported from ctypes and please make sure the CI checks are ok

How did you find it/check it? (To find a way to have it pointed to us, with a tool or something, I didn't catch it myself). Otherwise, how does one come up with a non-existing import in a PR?

You can simply just run it, ctypes is part of Python library:

from ctypes import ...

I remembered it from previous PRs, see how the import was done in wxnviz.py:

from grass.lib.ctypes_preamble import UNCHECKED, String

you can always go to the compiled files (dist.x86_64-pc-linux-gnu/etc/python/grass/lib/..) to check.