Feat: Encryption with multiple ciphers

[mugikhan]

Description

This pull request introduces support for encrypting the SQLite database using multiple ciphers. The changes include modifications to the VFS implementation, build scripts, and configuration to ensure that encryption is enabled and properly integrated.

Testing

• Tested by using both the sqlite3 and sqlite3mc binaries.
  • Loaded the unencrypted db file and tried executing SELECT * FROM sqlite_master;. This fails with the following error Parse error: file is not a database (26).
  • Loaded the encrypted db file and executed the same statement as above. After executing PRAGMA KEY statement, the SELECT statement returns as expected.
• Tested by using the dev build in the web sdk, loading the multiple-cipher build and setting an encryption key on the database.

[stevensJourney]

Minor comments from my side. Looks good to me though.

[stevensJourney]

Looks good from my side. I would suggest not merging this until the SDK changes are tested and ready.