Deleted ESCHotspot (use ESCItem instead)

Moved duplicated movement code from ESCPlayer and ESCItem/ESCHotspot to its own script.
Added talking animations management.
Fixed bug: character was turning to last_direction after talking, if coming from another direction than speaking direction.
Continued removing unfree stuff.

CREDITS

@@ -2,20 +2,39 @@ Assets
 ======
 
 
+Fonts
+-----
+
+These fonts are provided as an example. Please mind checking the licence before redistributing with your game.
+
+- Caslon Antique 
+https://www.1001fonts.com/caslon-antique-font.html#license
+Licence: Free for personal use - Free for commercial use
+This is the font used in LucasArt's game Curse of Monkey Island.
+
+- Onesize
+https://www.whatfontis.com/Onesize.font
+Licence: Free for personal use
+This is the font used in LucasArt's games The Secret of Monkey Island and Monkey Island 2: Lechuck's Revenge.
+
+
 Characters
 ----------
 
-- Mark spritesheet by Marco Giorgini - marcogiorgini.com (CC0 Licence) 
+- Mark spritesheet by Marco Giorgini - marcogiorgini.com 
+Licence : CC0 Licence
 https://opengameart.org/content/mark-2d-adventure-game-sprite
 with some additions (talk animations) by Julian Murgia
 
-- Worker spritesheet based on Mark spritesheet by Marco Giorgini - marcogiorgini.com (CC0 Licence)
+- Worker spritesheet based on Mark spritesheet by Marco Giorgini - marcogiorgini.com 
+Licence: CC0 Licence
 edited by Julian Murgia
 
 
 Items
 -----
 
-- Generic items by Kenney (CC0 Licence)
+- Generic items by Kenney
+Licence: CC0 Licence
 https://www.kenney.nl/assets/generic-items