Add height-query function to Tileset #2242

Job	Run time
Documentation	12m 52s
ubuntu-22.04 / gcc / Debug	3m 25s
Quick Checks	10s
ubuntu-22.04 / gcc / RelWithDebInfo	7m 16s
windows-2019 / Debug	5m 3s
ubuntu-20.04 / clang / Debug	3m 41s
windows-2019 / RelWithDebInfo	4m 43s
ubuntu-20.04 / clang / RelWithDebInfo	3m 4s
windows-2022 / Debug	4m 29s
macos-12 / clang / Debug	5m 30s
windows-2022 / RelWithDebInfo	4m 20s
macos-12 / clang / RelWithDebInfo	3m 48s
	58m 21s

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