Add getAllElements (strings) for Trie.

Change-Id: I9603cc51545f72fdb0854f2d76e2326706329000
Remove LookupTree as it is replaced with Trie.

Change-Id: I7611c5307e4d4e925dc3e54c6b3f2d1a47bd9080
fdo#68071 NPC characters now use a fixed color.

The color for non-printing characters (enable with CTRL+F10) has
now been changed to a fixed color.

Change-Id: I93dfc69fa4be1c1f1373f25434c8f4afa71355d3