Started to shift the glyphs to properly align with the baseline

|SOURCE|
[FontWidget]
* Temporarily disabled overlays that are not the baseline
* Before the glyph rendering loop, the glyphs are processed to discover the top
  and bottom halves in respect to the baseline for determining the maximum
  extents of the glyph (not just the one with the most pixels)
* Using the maximum extent of the glyphs on a line, all glyphs are offset to
  position them onto the baseline