Add Trie to the ecosystem

https://github.com/FCO/Trie

Author: FCO

META.list

@@ -882,3 +882,4 @@ https://raw.githubusercontent.com/darrenf/p6-test-declare/master/META6.json
 https://raw.githubusercontent.com/zoffixznet/perl6-App-GymScheduler/master/META6.json
 https://raw.githubusercontent.com/bbkr/GeoIP2/master/META6.json
 https://raw.githubusercontent.com/zoffixznet/perl6-WWW-vlc-Remote/master/META6.json
+https://raw.githubusercontent.com/FCO/Trie/master/META6.json