bugfix: function names

Dependencies

• [2] XNFTJHC4 split keyboard handling between Text and Drawing
• [3] 3RGHOJ25 DRY some code
• [4] NYQ7HD4D move
• [5] BYG5CEMV support for naming points
• [6] 7OUJM7DL one missing transition between shape modes
• [7] 2MA33THZ few more transitions between shapes
• [8] VHQCNMAR several more modules
• [*] BLWAYPKV extract a module

Change contents

• replacement in drawing.lua at line 461
  [2.8931]→[2.8931:8966](∅→∅)
  − convert_line(drawing, shape)
  [2.8931]

  [2.8966]
  + Drawing.convert_line(drawing, shape)
• replacement in drawing.lua at line 480
  [2.9820]→[2.9820:9858](∅→∅)
  − convert_horvert(drawing, shape)
  [2.9820]

  [2.9858]
  + Drawing.convert_horvert(drawing, shape)
• replacement in drawing.lua at line 683
  [3.22172]→[3.22172:22196](∅→∅)
  − convert_line(shape)
  [3.22172]

  [3.22196]
  + Drawing.convert_line(shape)