* entering a savegame description did not work anymore
* the length check was too restrictive and always underestimated the available space
* use the console font for entering a savegame description. This has more characters and better contrast for this content.
* the interface to the text enterer used bad measurements.
This was broken by several small unicode-incompatible code fragments.
This commit also removes the input limit for the player name and the savegame description. With multibyte encoding, limiting them to a fixed length did not work right.
Currently these will just overflow the fields if the text becomes too long, this needs some additional work.
- fixed: It is a bad idea to start a save within an MKEY_Input event. At this time the window chain is not stable because the text input screen is in the middle of being taken down, so the save should be deferred until the next Ticker call of the SaveMenu.
