Add (experimental) solarized-light theme

This theme should (when finished) look well
with the solarized-light color scheme.
It is still very rough and needs a lot of polishing
but I will try to improve it when I find time.
Otherwise it might be start for someone
using solarized-light to improve it.

themes/solarized-light

@@ -0,0 +1,82 @@
+[colours]
+bkgnd=default
+cmd.wins.unread=orange1
+titlebar=grey50
+titlebar.text=cornsilk1
+titlebar.brackets=cornsilk1
+titlebar.unencrypted=white
+titlebar.encrypted=orange1
+titlebar.untrusted=lightsalmon1
+titlebar.trusted=orange1
+titlebar.online=greenyellow
+titlebar.offline=white
+titlebar.away=wheat4
+titlebar.chat=orange1
+titlebar.dnd=red
+titlebar.xa=orange4
+statusbar=grey50
+statusbar.text=cornsilk1
+statusbar.brackets=cornsilk1
+statusbar.active=cornsilk1
+statusbar.new=lightsalmon1
+statusbar.current=lightsalmon1
+statusbar.time=cornsilk1
+main.text=default
+main.text.me=default
+main.text.them=default
+main.splash=orange1
+main.help.header=default
+main.text.history=default
+main.time=default
+input.text=default
+subscribed=green
+unsubscribed=default
+otr.started.trusted=green
+otr.started.untrusted=orange1
+otr.ended=red
+otr.trusted=green
+otr.untrusted=orange1
+online=green
+away=wheat4
+chat=green
+dnd=red
+xa=orange4
+offline=orange1
+incoming=lightsalmon3
+mention=orange1
+trigger=orange1
+typing=orange1
+gone=orange4
+error=red
+roominfo=default
+roommention=orange1
+roommention.term=lightsalmon1
+roomtrigger=lightsalmon3
+roomtrigger.term=cyan
+me=green
+them=cyan
+roster.header=default
+roster.chat=green
+roster.online=green
+roster.away=wheat4
+roster.xa=orange4
+roster.dnd=red
+roster.offline=default
+roster.chat.active=green
+roster.online.active=green
+roster.away.active=wheat4
+roster.xa.active=orange4
+roster.dnd.active=orange1
+roster.offline.active=default
+roster.chat.unread=green
+roster.online.unread=green
+roster.away.unread=wheat4
+roster.xa.unread=orange4
+roster.dnd.unread=red
+roster.offline.unread=default
+roster.room=green
+roster.room.unread=orange1
+roster.room.mention=lightsalmon1
+roster.room.trigger=lightsalmon1
+occupants.header=default
+receipt.sent=default