Initial import of support files for all Digistump boards - Digispark, Pro, DigiX - including libraries, examples, tools, and other support files for the Arduino IDE

hardware/digistump/sam/libraries/RF24Network/tests/README

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+This is the 'receiver' for the unit tests.  Run it on a node which
+is NOT under test.
+
+TODO
+
+Send finder request needs a re-think.  It needs to be re-implemented as a Tictocs::Timer, so it
+doesn't block the loop().
+
+I could also make Tictocs objects which monitor the RF24network and pull off messages that are just
+for them.  Likewise, the network can raise a signal when there is a new message.  Although I would not
+want to put that into the library for fear of adding a dependency.
+
+so the finder needs to maintain state
+- Waiting: Waiting for a finder request
+- Sending: In the midst of looping through children
+
+Needs to have some delay between each send.  So the finder has a timer component.
+
+Also...  Reset should also reset the internal copy of the sync data.  Sync may need a 'reset' method.