Recover or re-create `ppc-testresults.dat.bz2`

[ianfixes]

From doc/PowerPC-Testsuite.md:

It is recommended that you first run the tester on a native PowerPC platform to generate a results file. For reference, here is the [[this>projects/ppctester/files/ppc-testresults.dat.bz2|PowerPC Emulator Tester results file]] I use for SheepShaver. This was generated with AltiVec tests enabled. This is for revision 1.30+ of the file. md5sum is: ''3e29432abb6e21e625a2eef8cf2f0840''.

We should do that, and save the file here for posterity.