Update Pillager raids

So as we all know Pillager raids can be fairly simple.

just trap the villagers in their house and you almost already won

here are my ideas:

- A pillager that spawns in the 2nd wave of the raid that has a pickaxe to destroy cobblestone or other types of stone (counters the strategy to trap villagers in their house)

- A pillager with a shield spawns in the 2nd wave (I would love more hostile mobs with shields)

- The illusioner should be added in raids (as supporter of the evoker)

- Ravagers should be able to stun shields (also iron golems should be too)

- Librarions should be able to have a rare change to give an enchanted book when you defended a raid

-A new pillager that can climb walls (counters the strategy to just tower up)

These were my ideas i hope you can look at it and maybe even improve it :)