Added performance tests
Random123: exporting custom CBRNGs
Added more documentation
Fixed test scripts
Added test_perf to gitignore
Performance testing is handled by test_perf
test/profile: some cosmetic changes
test/test_perf: added bijection tests
Misc: forced evaluation of the function on each iteration of applyLoop
Philox, Threefry: added strictness modifiers to prevent stack exhaustion

Not sure about the exact reason they work though.
test/profile: added calls to all tests
test/test_perf: fixed typo
README: added a task to TODO