Imatest freezing on macOS for 2021.1 and prior

\uD83E\uDD14 Problem

\uD83C\uDF31 Solution

Imatest version	library path
2021.1	/Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib
2020.2	/Applications/MATLAB/MATLAB_Runtime/v98/bin/maci64/libcudart.10.1.dylib
2020.1	/Applications/MATLAB/MATLAB_Runtime/v97/bin/maci64/libcudart.10.1.dylib

If your Imatest version is not listed in the table above and you are experiencing the issue, then locate the file path to the copy of libcudart.<major number>.<minor number>.dylib in the version of the MATLAB Runtime that shipped with your Imatest version.

Open a terminal window
Enter the following and then press `return`
```
sudo codesign --deep -fs - <library path>
```
where <library path> should be replaced with the library path from the table above. For example, for Imatest 2021.1, you would run
```
sudo codesign -fs - /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib
```

[Optional] Verify that the library was successfully code-signed by running the following

codesign --verbose --verify <library path>

If the code-signing operation was successful, you should see output similar to

codesign --verify --verbose /Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib
/Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib: valid on disk
/Applications/MATLAB/MATLAB_Runtime/v99/bin/maci64/libcudart.10.2.dylib: satisfies its Designated Requirement

Start Imatest as normal and attempt the operation that previously froze.

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