Clean up code (AEGIS cipher, some extensions)

- Exclude not necessary AEGIS functions from compilation to reduce code size
- Fix amalgamation script to handle including certain headers multiple times
- Clean up some extensions to use SQLITE_API

CHANGELOG.md

@@ -7,6 +7,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Added new cipher scheme AEGIS
+
+### Changed
+
+- Removed User Authentication extension
+- Cleaned up some extensions to use SQLITE_API
+
+### Fixed
+
+- Fixed undefined behavior related to function pointer cast
+
 ## [1.9.2] - 2024-12-08
 
 ### Changed

configure.ac

@@ -4,7 +4,7 @@ dnl Copyright (C) 2019-2024 Ulrich Telle <[email protected]>
 dnl
 dnl This file is covered by the same licence as the entire SQLite3 Multiple Ciphers package.
 
-AC_INIT([sqlite3mc], [1.9.2], [[email protected]])
+AC_INIT([sqlite3mc], [2.0.0], [[email protected]])
 
 dnl This is the version tested with, might work with earlier ones.
 AC_PREREQ([2.69])