Node Management Base Functionality Complete

Tested on 1M Rev 1 hardware.  Parent and Child nodes are good to go.

Outstanding in createChildNode when attempting to use the shared buffer. However, using a local pNode is the workaround and passes tests.  (RAM usage issue?).

I would also like to optimize the node mgmt code for progmem space.

Added Readme.md files. Formatting may be a bit off for both readme's and code.  I will push a fix for the code formatting later. I may need assistance with the Readme.md file formatting.

Added a few 'useful' functions in the libs.  Fixed bugs etc.  Hopefully this pull request will go without a hitch.

~Mike