Replaced system SQLite with SQLCipher to support encrypted database

Package.swift

@@ -3,12 +3,6 @@
 
 import PackageDescription
 
-#if os(Linux)
-let sqlitePkg = "sqlite3"
-#else
-let sqlitePkg: String? = nil
-#endif
-
 let package = Package(
     name: "DataLiteC",
     platforms: [
@@ -19,9 +13,55 @@ let package = Package(
         .library(name: "DataLiteC", targets: ["DataLiteC"])
     ],
     targets: [
-        .systemLibrary(name: "DataLiteC", pkgConfig: sqlitePkg, providers: [
-            .apt(["sqlite3", "libsqlite3-dev"]),
-            .brew(["sqlite"])
-        ])
+        .target(
+            name: "DataLiteC",
+            sources: ["libtomcrypt", "sqlcipher"],
+            publicHeadersPath: "sqlcipher",
+            cSettings: [
+                .headerSearchPath("libtomcrypt/headers"),
+                .define("MIN(x,y)", to: "(((x)<(y))?(x):(y))"),
+                .define("MAX(x,y)", to: "(((x)>(y))?(x):(y))"),
+                .define("SQLCIPHER_CRYPTO_LIBTOMCRYPT"),
+                .define("SQLITE_HOMEGROWN_RECURSIVE_MUTEX"),
+                .define("SQLITE_HAS_CODEC"),
+                .define("SQLITE_EXTRA_INIT", to: "sqlcipher_extra_init"),
+                .define("SQLITE_EXTRA_SHUTDOWN", to: "sqlcipher_extra_shutdown"),
+                .define("SQLITE_THREADSAFE", to: "1"),
+                .define("SQLITE_TEMP_STORE", to: "2"),
+                .define("SQLITE_SECURE_DELETE"),
+                .define("SQLITE_ENABLE_COLUMN_METADATA"),
+                .define("SQLITE_ENABLE_DBSTAT_VTAB", .when(configuration: .debug)),
+                .define("SQLITE_ENABLE_STMTVTAB", .when(configuration: .debug)),
+                .define("SQLITE_ENABLE_API_ARMOR", .when(configuration: .debug)),
+                .define("SQLITE_ENABLE_FTS3"),
+                .define("SQLITE_ENABLE_FTS4"),
+                .define("SQLITE_ENABLE_FTS5"),
+                .define("SQLITE_ENABLE_FTS3_PARENTHESIS"),
+                .define("SQLITE_ENABLE_FTS3_TOKENIZER"),
+                .define("SQLITE_ENABLE_RTREE"),
+                .define("SQLITE_ENABLE_UNLOCK_NOTIFY"),
+                .define("SQLITE_DQS", to: "0"),
+                .define("SQLITE_ENABLE_PREUPDATE_HOOK"),
+                .define("SQLITE_MAX_VARIABLE_NUMBER", to: "250000"),
+                .define("SQLITE_LIKE_DOESNT_MATCH_BLOBS"),
+                .define("SQLITE_OMIT_DEPRECATED"),
+                .define("SQLITE_OMIT_SHARED_CACHE"),
+                .define("SQLITE_USE_URI"),
+                .define("HAVE_GETHOSTUUID", to: "0"),
+                .define("HAVE_STDINT_H"),
+                .define("LTC_NO_TEST"),
+                .define("LTC_NO_FILE")
+            ],
+            linkerSettings: [
+                .linkedLibrary("log", .when(platforms: [.android]))
+            ]
+        ),
+        .testTarget(
+            name: "DataLiteCTests",
+            dependencies: ["DataLiteC"],
+            cSettings: [
+                .define("SQLITE_HAS_CODEC")
+            ]
+        )
     ]
 )