TITANIC: Make it easier to see letter for bomb puzzle

[dafioram]

When doing this puzzle you must put the cursor over the letter and then move it away to see what the new letter is, I think it would be an improvement to make it so the new letter can be seen without having to move the mouse/cursor.

This would have 2 changes.

1. Remove the hourglass that appears when you click to change the letter
2. The cursor goes semi transparent when the cursor is hovering over a letter. Or just have the cursor be transparent when its anywhere in the rectangle part of the screen where the keys are.

[dafioram]

cursor makes letter hard to see

[dreammaster]

snover already has a code enhancement to the ScummVM backend to allow for the transparent cursors just like the original has. It's just waiting on him to merge it into master, in another week or so.