Corrected compile errors for unb1_board.

...b1_board/src/vhdl/unb1_board_back_uth_terminals_bidir.vhd

...ard1/libraries/unb1_board/src/vhdl/unb1_board_control.vhd

...b1_board/src/vhdl/unb1_board_mesh_uth_terminals_bidir.vhd

...braries/unb1_board/src/vhdl/unb1_board_terminals_back.vhd

...braries/unb1_board/src/vhdl/unb1_board_terminals_mesh.vhd

...board1/libraries/unb1_board/tb/vhdl/tb_unb1_board_pkg.vhd