Add `DepthCamera` gz-sim plugin #50

Job	Run time
[pixi:ubuntu-22.04:env:default]	3m 39s
[pixi:ubuntu-22.04:env:ionic]	3m 48s
[pixi:macos-latest:env:default]	3m 13s
[pixi:macos-latest:env:ionic]	1m 46s
[pixi:windows-2019:env:default]	4m 56s
[pixi:windows-2019:env:ionic]	5m 7s
	22m 29s

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