This PR contains a few miscellaneous fixes for non-Darwin platforms:

1. Remove the #if !os(Windows) conditional for some of the type extensions. I'm not sure when/why they were added, but they seem to work fine in my other branch that builds/tests this against Windows: https://github.com/swift-everywhere/grdb-sqlcipher/actions/runs/21649487847
2. Add a conditional import Android that is needed for standard C functions like strcmp
3. Add a type annotation to AssociationTableAliasTestsSQLTests that was causing some "statement to complex" evaluation errors when building on other platforms.
4. Handle both "commoncrypto" and "libtomcrypt" cipher names in EncryptionTests.testCipherProvider

Pull Request Checklist

• CONTRIBUTING: You have read https://github.com/groue/GRDB.swift/blob/master/CONTRIBUTING.md
• BRANCH: This pull request is submitted against the development branch.
• DOCUMENTATION: Inline documentation has been updated.
• DOCUMENTATION: README.md or another dedicated guide has been updated.
• TESTS: Changes are tested.
• TESTS: The make smokeTest terminal command runs without failure.