change the driver which is compatible with sqlcipher and modified the way to connect the encrypted sqlite db file

src/main/java/minsecurity/identity/persist/sqlite/db/Db.java

@@ -210,6 +210,7 @@ public final class Db {
         Connection c = Sqlite.getInstance().getConn();
         String pubStr = "", priStr = "", certStr, prikeyRawByte = "";
         int algo, sign;
+
         if (identity.hasPrivateKey()){
             byte[] priByte = identity.getPrikey().getBytes();
             priStr = Base64.getEncoder().encodeToString(priByte);