add bash code for auto-open auto-create spine

[jonlepage]

Todo, only need to create your button checkBox and test on mac, linux environment

[jonlepage]

for now you can debug and look the output temp.bat it look like this

@echo off
start /W /D "C:\Program Files (x86)\Spine\" Spine.com -i "C:\Users\InformatiqueLepage\Desktop\Sans titre-1.json" -o "C:\Users\InformatiqueLepage\Desktop\Calque 0.spine" -r 

start "C:\Program Files (x86)\Spine\Spine.exe" "C:\Users\InformatiqueLepage\Desktop\Calque 0.spine" 
cmd /k