defer canvas creation

fix image canvas resize

compat relase for xtermjs 5.2.0

IIP support

compat release for xterm.js 5.1.0

important change: worker removed from addon

compat release for xterm.js 5.0.0

bugfix: avoid striping

bugfix: reset clear flag

patch release:

- clear sticky image tiles on render
- create xterm-addon-image folder from bootstrap.sh
- fix peer dependency in package.json