Add memories to key alive character histories

[jj248]

Making a start on this. Lowest hanging fruit would be bookmark characters, their family and other key lore characters. Checklist below:

• [x] Denethor
• [x] Adrahil
• [ ] Sauron
• [x] Kathuphazgan
• [x] Suladan
• [x] Vangaris
• [x] Theoden
• [ ] Saruman
• [x] Wulfgar
• [x] Madogh
• [x] Ayal
• [x] Niluhin
• [ ] Golden King
• [x] Vatalinar
• [x] Ruadomirh
• [x] Arnakhor
• [x] Bain
• [x] Hawin
• [x] Zhamik
• [ ] Khamul
• [x] Grimbeorn
• [ ] Galadriel
• [ ] Thranduil
• [ ] Witch King
• [ ] Elrond

[jj248]

Happy with this for v3 content. Pushing the rest to v4.