basic-benchmark: portable Fedora benchmark kit

Headless + headed suites with power/thermal logging and efficiency reporting.
Includes PassMark, llama.cpp, app workloads (LibreOffice/GEGL/Inkscape/GIMP),
a GOVERNOR selector, compare-report.py, and captured results.

results/sysbench-nt-before-headless.txt

@@ -0,0 +1,31 @@
+sysbench 1.0.20 (using system LuaJIT 2.1.1761727121)
+
+Running the test with following options:
+Number of threads: 8
+Initializing random number generator from current time
+
+
+Prime numbers limit: 10000
+
+Initializing worker threads...
+
+Threads started!
+
+CPU speed:
+    events per second:  7783.14
+
+General statistics:
+    total time:                          10.0008s
+    total number of events:              77853
+
+Latency (ms):
+         min:                                    0.39
+         avg:                                    1.03
+         max:                                   39.41
+         95th percentile:                        1.16
+         sum:                                79922.55
+
+Threads fairness:
+    events (avg/stddev):           9731.6250/199.02
+    execution time (avg/stddev):   9.9903/0.01
+