Add height-query function to Tileset #2160

Job	Run time
Documentation	12m 32s
ubuntu-latest / gcc / Debug	3m 19s
ubuntu-latest / gcc / RelWithDebInfo	8m 0s
Quick Checks	9s
ubuntu-20.04 / clang / Debug	3m 27s
windows-2019 / Debug	4m 37s
ubuntu-20.04 / clang / RelWithDebInfo	3m 30s
windows-2019 / RelWithDebInfo	4m 29s
macos-12 / clang / Debug	6m 14s
windows-2022 / Debug	4m 43s
macos-12 / clang / RelWithDebInfo	4m 13s
windows-2022 / RelWithDebInfo	5m 11s
	1h 0m 24s

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