V1.0.19 released

Changes :
- The automap can now be annoted.
- An introduction text now appears when launching the game and starting a new game.
- The special properties of opponents can now be seen in their description (like other info it requires some score in Bestiary to see those).
- Several code changes were made to create an editor.

Fixes :
- The line of sight appeared two times in a row in the character sheet. This was fixed.
- The option to choose between rolling and buying stats was not saved. This was fixed.
- The log could indicate that a trap or a monster two tiles away in a direction was behind a door when not and vice versa. This was fixed.
- Some text fixes.