Add tile statistics to mbtiles #2227

Job	Run time
Build and test docker images	3m 58s
Lint and Unit test	2m 28s
Build aarch64-apple-darwin	7m 44s
Build debian-x86_64	5m 31s
Build x86_64-apple-darwin	8m 17s
Build x86_64-pc-windows-msvc	5m 51s
Build x86_64-unknown-linux-gnu	2m 25s
Test on macOS-latest	4m 46s
Test postgis:11-3.0-alpine sslmode=disable	6m 42s
Test on windows-latest	2m 8s
Test postgis:14-3.3-alpine sslmode=disable	5m 22s
Test on ubuntu-latest	1m 3s
Test postgis:15-3.3 sslmode=require	6m 7s
Package	0s
CI Finished	0s
	1h 2m 22s

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