PMTiles cache, refactor file configs, modularize #2566

Job	Run time
Build and test docker images	4m 37s
Build aarch64-apple-darwin	13m 46s
Build debian-x86_64	5m 39s
Build x86_64-apple-darwin	2m 7s
Lint and Unit test	2m 43s
Build x86_64-pc-windows-msvc	4m 6s
Build x86_64-unknown-linux-gnu	1m 24s
Test postgis:11-3.0-alpine sslmode=disable	3m 33s
Test postgis:14-3.3-alpine sslmode=disable	3m 42s
Test on macOS-latest	10m 54s
Test postgis:15-3.3 sslmode=require	3m 56s
Test on windows-latest	1m 19s
Test on ubuntu-latest	1m 1s
Package	1m 0s
CI Finished	1s
	59m 48s

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