refactor: move all packages to `crates` subdir #1072

Job	Run time
Build and Test (maa-sys, static) (ubuntu-latest)	18s
Build and Test (ubuntu-latest)	1m 22s
Build and Test (maa-sys, static) (macos-13)	50s
Build and Test (no default features) (ubuntu-latest, core_installer)	1m 55s
Build and Test (macos-13)	2m 2s
Cross Build to aarch64 (ubuntu-latest)	2m 59s
Build and Test (maa-sys, static) (macos-latest)	27s
Build and Test (no default features) (ubuntu-latest, git2)	1m 40s
Cross Build to aarch64 (windows-latest)	3m 15s
Build and Test (macos-latest)	1m 20s
Build and Test (maa-sys, static) (windows-latest)	2m 33s
Build and Test (no default features) (macos-latest, core_installer)	1m 31s
Build and Test (windows-latest)	3m 33s
Build and Test (no default features) (macos-latest, git2)	1m 51s
Build and Test (no default features) (windows-latest, core_installer)	3m 30s
Build and Test (no default features) (windows-latest, git2)	3m 58s
Coverage	0s
	33m 4s

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