make ETA LLM(AI) friendly

[linzuzeng]

Currently ETA requires graphical input for making State Diagram in virtual instrument. this prevents LLM from learning and updating recipes

The proposed change is to add new keyword pass init and bidirectional sync between state diagram and the text panel.

# taking_time{"position":[102,22]}
# this comment is for saving the position of the circle as text
INIT(taking_time)
# this is for making taking_time the init state
taking_time--1-->idle: 
   pass
   # this will only draw the state change but not actually doing anything 

also the text can be export as .evi (ETA Virtual Instrument) format which can be put in a recipe folder with the display panel .py files and loaded for execution as an alternative to the single-file .eta recipe.