Init canvas window local toolbar for each Instance
Add animate mode button to local toolbar of canvas window

Add animate toggle button to canvas window toolbar and uncomment about action
Add past and furture keyrame lock toggle actions into canvas window local toolbar

Add Past/Furture Keyframe buttons, adjust the default active state of
Animate Mode button of local toolbar of canvas window.
Remove zoomdial, framedial, toggleducksdial, show_grid, snap_grid, onion_skin

Remove these buttons from display bar by commented out related code, and these commented code
should be cleanup later on.
Add toggle play action and comment out on_play_pause_pressed

The toggle paly function is imcompleted yet. it is missing pause fun.
Remove animation button and past/furture keyframe lock buttons

Both of them were placed with toggle action and are hosting on
canvas window local toolbar already. Cleanup the unused code as well.
Cleanup commented code