feat: add blowfish2 128 bit implementation

- regular blowfish only uses 64 bits
- blowfish2 uses 128 bits like AES

Signed-off-by: Avinal Kumar <avinal.xlvii@gmail.com>

tests/Main.cpp

@@ -1,12 +1,3 @@
-/**
- * /mnt/z/my_git/blowfish/src/Main.cpp
- * @file Main.cpp
- * @author Avinal Kumar
- * @since March 06, 2021
- *
- * Test Program
- */
-
 #include <iostream>
 
 #include <blowfish/blowfish.h>
@@ -59,6 +50,7 @@ int main(int argc, char const *argv[]) {
 
   std::cout << decipher << std::endl;
   if (message == decipher) {
+    std::cout << "Test successful!" << std::endl;
     return 0;
   } else {
     return 1;