Vision2u Vision2

disable menus and buttons when no project is loaded
Defect: VIS-54

update to handle non-existing project file when startup
Defect: VIS-54

re-design icons for the application.
Defect: VIS-53

delete auto save files + load recovery menu
Defect: VIS-52

Implement auto save when exiting program. Implement CloseNormally and LastAutoSave in ProgramProperties.
Defect: VIS-52

implement trigger auto saving when: delete state, delete command, import command, open another project, start debug
Defect: VIS-52

Synchronized plugIN for Commands with multi instances

fixed the problem of display help for plugins
Defect: VIS-̀51

Update icons for plugins
Defect: VIS-51

code for Image plugin (Based on ImageDisplay)
Defect: VIS-51