few more transitions between shapes

Dependencies

• [2] WTDKUACN rectangle and square shapes
• [3] 7OUJM7DL one missing transition between shape modes
• [4] BYG5CEMV support for naming points
• [5] XNFTJHC4 split keyboard handling between Text and Drawing
• [*] BLWAYPKV extract a module

Change contents

• edit in drawing.lua at line 391
  [2.7160]

  [2.7160]
  + elseif drawing.pending.mode == 'polygon' or drawing.pending.mode == 'square' then

  + -- reuse existing (1-2) vertices
• edit in drawing.lua at line 408
  [2.7954]

  [2.7954]
  + elseif drawing.pending.mode == 'rectangle' then

  + -- reuse existing (1-2) vertices

  + elseif drawing.pending.mode == 'polygon' then

  + while #drawing.pending.vertices > 2 do

  + table.remove(drawing.pending.vertices)

  + end
• replacement in drawing.lua at line 438
  [3.8053]→[3.8053:8103](∅→∅)
  − elseif drawing.pending.mode == 'polygon' then
  [3.8053]

  [3.8103]
  + elseif drawing.pending.mode == 'polygon' or drawing.pending.mode == 'rectangle' or drawing.pending.mode == 'square' then
• replacement in drawing.lua at line 466
  [3.9357]→[3.9357:9407](∅→∅)
  − elseif drawing.pending.mode == 'polygon' then
  [3.9357]

  [3.9407]
  + elseif drawing.pending.mode == 'polygon' or drawing.pending.mode == 'rectangle' or drawing.pending.mode == 'square' then