add count for Chrisy's eggs

Text only changes that will add a could of the clutches of eggs laid by
Christy. No new variables or mechanics.

Note: first attempt to provide a change for the game and this is
hiccup's original work. If there is any other preferred mechanism for
this please let me know, but it was not clear in the forum
Add talk option about offspring

Just add a talk option to give an offspring count. No new variables just
the option. Possibly could expand, to reduce humanity a little, show a
sexy scene or add incest option
Merge branch 'master' of https://github.com/cmacleod42/Flexible-Survival