adding support for bee2 resource

adding required scripts for enabling a separate screen for n-cpu-bee2.
as well as adding a new flavor called "bee2", with extra specs of "bee2_board".
also, adding a separate BEE2_CONF directory.
create bee2-nodes.sh

Registering 4 FPGAs for each bee2 board, as well as 4 ports (network interfaces) for each FPGA in each board.
Merge pull request #7 from hesamrahimi/silver

adding support for bee2 resource