Port German CV Bombers

[stjern90]

In the merge of nav cv and cas cv the Germans were not ported correctly, the name and GFX needs to be taken from the old.

[stjern90]

To test:

1. open game in debug mode
2. make sure I didnt add bracker error somehwere by looking for a high number of new errors in the log.
3. start game as germany

4 ) open console and type 'research_on_icon_click'

5. click-research the german carrier bombers, validate that they have consistent names and GFXs both in tech menu and prod menu. Validate that its the junker 87 models.