Add tile statistics to mbtiles #2269

Job	Run time
Lint and Unit test	8m 36s
Build and test docker images	16m 51s
Build aarch64-apple-darwin	11m 1s
Build debian-x86_64	11m 8s
Build x86_64-apple-darwin	10m 44s
Build x86_64-pc-windows-msvc	10m 28s
Build x86_64-unknown-linux-gnu	6m 3s
Test on macOS-latest	6m 47s
Test postgis:11-3.0-alpine sslmode=disable	7m 19s
Test on windows-latest	3m 5s
Test postgis:14-3.3-alpine sslmode=disable	7m 28s
Test on ubuntu-latest	1m 1s
Test postgis:15-3.3 sslmode=require	5m 57s
Package	1m 5s
CI Finished	1s
	1h 47m 34s

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