New SRFI-105 egg

[diego]

Hi all - I've created a Chicken 5 egg for SRFI-105: curly infix
expressions. It implements both the base srfi and an (srfi-105 extra)
module that provides mixed operator and operator precedence
functionality. I've tested it with test-new-egg, though at the moment
there are no tests for the extra module.

Here's the release-info file:
https://code.dieggsy.com/srfi-105/plain/srfi-105.release-info

And some more details, which will go into the wiki if/once the egg is
added:
https://code.dieggsy.com/srfi-105/tree/srfi-105.svnwiki

- Diego