status bar support needs to be completed

[bombasticbob]

currently, only a 'basic' implementation exists for the status bar. the status bar should be able to display status in multiple columns along the bottom, either right or left justified (or both at the same time), and with text inside the columns displayed left-aligned, right-aligned, or centered.

• Multiple columns displayed
• columns defined using status bar 'tab stop' information assigned to the Frame Window
• columns are right-justified or left-justified, and re-position as window is re-sized
• text within th columns can be displayed right, left, or center justified