Begin Running Examples in the Test Suite

[MattToast]

Adds some infrastructure to run examples as part of the test suite. Adds three of the examples to the test suite, checking that return code and stdout match what is expected.

There is still work to do to run the remain examples, but this hopefully will lend some guidance for #25.

[ashao]

Did you want this file committed?

[MattToast]

I do. This is the file that the test suite will use check to make sure that the stdout of the example matches what we expect in the test suite.

[ashao]

Even after the fix I made to CMake, it still shows up twice?

[MattToast]

It was last I checked, but its honestly been a minute since I last pulled from main. Let me try merging up and double checking!

[MattToast]

Looks like it still is for me :/

$ ldd ./install/bin/examples/dragon-cpp-producer
	linux-vdso.so.1 (0x00007fce75703000)
	libradex.so => /lus/scratch/drozt/repos/rhapdev/raddex/install/lib64/libradex.so (0x00007fce756a5000)
	libsmartredis.so => /lus/scratch/drozt/repos/ssimdev/sr/install/lib64/libsmartredis.so (0x00007fce754d3000)
	libdragon.so => not found  # <- Links here
	libxpmem.so.0 => /opt/xpmem/lib64/libxpmem.so.0 (0x00007fce754b2000)
	libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007fce7524d000)
	libm.so.6 => /lib64/libm.so.6 (0x00007fce75163000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fce75136000)
	libc.so.6 => /lib64/libc.so.6 (0x00007fce74f21000)
	libdragon.so => /lus/scratch/drozt/repos/rhapdev/raddex/venv/lib/python3.12/site-packages/dragon/lib/libdragon.so (0x00007fce74a6b000)  # <- Links here also!
	/lib64/ld-linux-x86-64.so.2 (0x00007fce75705000)

and similarly, for the in-mem example libdragon.so is still required to be present on the LD_LIBRARY_PATH

$ ldd install/bin/examples/in-mem-poc
	linux-vdso.so.1 (0x00007ffd7f318000)
	libradex.so => /lus/scratch/drozt/repos/rhapdev/raddex/install/lib64/libradex.so (0x00007f8720b21000)
	libsmartredis.so => /lus/scratch/drozt/repos/ssimdev/sr/install/lib64/libsmartredis.so (0x00007f872094f000)
	libdragon.so => not found  # <- Links here
	libxpmem.so.0 => /opt/xpmem/lib64/libxpmem.so.0 (0x00007f872092e000)
	libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f87206c9000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f87205df000)
	libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f87205b2000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f872039d000)
	libdragon.so => /lus/scratch/drozt/repos/rhapdev/raddex/venv/lib/python3.12/site-packages/dragon/lib/libdragon.so (0x00007f871fee7000)  # <- And here
	/lib64/ld-linux-x86-64.so.2 (0x00007f8720b7b000)

That said, the problem isn't so much that it is double linking, but rather that libdragon.so must be on LD_LIBRARY_PATH. I can update the header on the try/except block doing this mangling.