Improve 'status' summary on Powder front page
At a recent meeting, we decided to update the status box on the front page to include the following:
- Number of base station nodes available
- Number of fixed endpoint nodes available
- Number of nodes in PhantomNet available
- Fraction of edge compute servers available
- Fraction of cloud compute servers available
We had decided that we'd get the first two by basically just counting up the number of available (free and up) of the node types that host the SDRs. 'Edge compute' nodes are the type that are up in the FORT datacenter, 'cloud' are all CloudLab Utah or Emulab (not decided) types