* tallies up data stored on each node in pointerdb
* adds comments for data type enums
* changes Open to BeginTx because Go convention
* removes online status check from identify active nodes
* changes identifyactivenodes to calculatestaticdata
* updates accounting dbx names
* creates separate tally and rollup packages and writes skeleton for rollup
* TODO add rollupDB and rawDB to rollup struct
* TODO add rawDB to tally struct