PMTiles cache, refactor file configs, modularize (#1094) #2585

Job	Run time
Build and test docker images	2m 18s
Build aarch64-apple-darwin	2m 15s
Build debian-x86_64	2m 15s
Lint and Unit test	2m 17s
Build x86_64-apple-darwin	2m 11s
Build x86_64-pc-windows-msvc	2m 6s
Build x86_64-unknown-linux-gnu	1m 59s
Test postgis:${{ matrix.img_ver }} sslmode=${{ matrix.sslmode }}	1s
Test on ${{ matrix.os }}	1s
Package	1s
CI Finished	1s
	15m 25s

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