Add force getter to ParticleBuilder (#6300)

patches/api/Expand-World.spawnParticle-API-and-add-Builder.patch

@@ -430,6 +430,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +
 +    /**
++     * @return whether the particle is forcefully shown to players.
++     */
++    public boolean force() {
++        return force;
++    }
++
++    /**
 +     * Sets whether the particle is forcefully shown to the player. If forced, the particle will show
 +     * faraway, as far as the player's view distance allows. If false, the particle will show
 +     * according to the client's particle settings.