* Launch Fluffy builds directly from make to avoid compile issue
Without this change, builds on latest macos fails when ulimit is
not set to 1024. But it will still cause libbacktrace error to occur
when launching the binaries so it would be still advised to
set it to 1024.
* Fix fluffy local testnet for some macOS systems
And some additional improvements to the script + run the fluffy
nodes at INFO log-level to speed-up the testing time.
* Split up fluffy tests in separate targets
This way the two test binaries can be build and ran
concurrently.
Kim De Mey