Algoodoo 2.1.0

Darling cmake build options: `-DCMAKE_BUILD_TYPE=Debug -DENABLE_TESTS=1 -DADDITIONAL_PACKAGES=ON -DCOMPONENTS=all`

Download: https://www.algodoo.com/download/Algodoo_2_1_0-MacOS.dmg

How to replicate:
```
hdiutil attach Algodoo_2_1_0-MacOS.dmg
cd /Volumes/Algodoo_2_1_0-MacOS/
cd Algodoo.app
cd Contents
cd MacOS
STUB_VERBOSE=1 ./Algodoo
```

Result:
```
Cannot load libgif.so.7 (ELF): libgif.so.7: cannot open shared object file: No such file or directory
Abort trap: 6
```

Start by reproducing the issue with the listed CMake options and the STUB_VERBOSE=1 ./Algodoo command from Algodoo.app/Contents/MacOS. Trace why libgif.so.7 cannot be loaded on the mounted MacOS image; done means Algodoo starts without the missing-library error or abort trap.

Written by the indexing model from the issue text.