[FEATURE] Dynamic change of knitting boundaries, interactive knitting.

[KnittedTeddy]

Dynamic change of knitting boundaries, interactive knitting.
Problem:
The current version of AYAB can only knit rectangular items. For shaped items with significant size changes during knitting (e.g. sleeves, scarves...), idle zones of the carriage are formed between the last knitting needle and the request point for a new row, after which a turn is possible. This increases the time, sagging/tangling, changes in thread tension and similar problems are possible, which, for example, in combination with the already slow G carriage can kill the timid desire to continue machine knitting.

Proposal:
Organize the ability to dynamically change boundaries during knitting.

Goals:

• Reducing the time spent, reducing the number of errors and improving the quality of the fabric;
• Ability to use non-rectangular patterns, and automatic notification of the need for decreases/increases (interactive knitting, DAK)
  Necessary improvements:
  Stage 1 - manual change:
• Protocol change - adding left and right knitting borders for each row
• Providing the ability to edit borders during knitting or in the "Pause" mode (Add "Pause" Functionality #648)
• Slight complication of the pattern fixing mechanism ("Left edge alignment" -> "Alignment by needle No. L45"
  Stage 2 - interactive knitting
• Introducing the special "Do not knit" color and automatic borders change
• Refinement of the user interface to implement active notifications about increases/decreases
• Implementation of the ability to load DAK pattern files (possibly as a separate application - converter).
  Answer to opponents:
  Now you can stop knitting and start it from an arbitrary row with changed borders, but there is no pattern fixation and it can move, selection of the first row of knitting needles after a pause, it is technologically very labor-intensive (rearrange the carriages, remove all the needles to position B, knit one row with the "Skip" buttons, thread the threads, do all this without errors). The goal is to simplify the process and reduce time, and not the other way around.