sctk: Map subsurface pointer events to parent surface, with offset #81

	name: Format
	on: [push, pull_request]
	jobs:
	all:
	runs-on: ubuntu-latest
	steps:
	- uses: hecrj/setup-rust-action@v1
	with:
	components: rustfmt
	- uses: actions/checkout@master
	- name: Check format
	run: cargo fmt --all -- --check --verbose

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