several bugfixes

Dependencies

• [2] WTDKUACN rectangle and square shapes
• [3] RT6EV6OP delegate update events to drawings
• [*] BJ5X5O4A let's prevent the text cursor from ever getting on a drawing
• [*] FEEGTRGQ bugfix: duplicate character on enter
• [*] BLWAYPKV extract a module
• [*] NYQ7HD4D move
• [*] HYEAFRZ2 split mouse_pressed events between Text and Drawing

Change contents

• edit in manual_tests at line 14
  [5.326]

  [6.2]
  +

  + drawing

  + draw a line, circle, rectangle, square, polygon

  + select a point and move it
• edit in drawing.lua at line 174
  [8.4352]

  [2.4014]
  + elseif shape.mode == 'move' then

  + -- nothing pending; changes are immediately committed
• edit in drawing.lua at line 200
  [9.1671]

  [2.4186]
  + elseif Current_drawing_mode == 'move' then

  + -- all the action is in mouse_released
• replacement in drawing.lua at line 232
  [2.4251]→[2.4251:4301](∅→∅)
  − print(Current_drawing_mode)

  − assert(false)
  [2.4251]

  [3.1041]
  + -- do nothing