Updated House Tyrell's Industrial focus tree branch.

- Added a House of the Dragon Easter Egg. Simply follow the Lord of Light, control King's Landing, spend some PP and you have a new leader. For easiest playthroughs, I recomend playing as the Crownlands and inviting Stannis as your King AFTER he has converted to the Lord of Light. Also, MAJOR SPOILER WARNING!

Religion:
- Fixed a bug that prevented the Lord of Light decisions to be unavailable if you don't have a Red Priest.
- Renamed 'Prince that was Promised' trait to 'Wielder of Lightbringer', as there was an overlap with a Stannis spirit.

House of Stannis Baratheon:
- 'Trust Lord of Light' focus now directly converts your religion.
- Fixed some localization errors in the focus tree.

The Crownlands:
- New focus: Hire the Golden Company. Works the same as other countries that have it, and can be accessed via the Lannister Takeover path.
- New Focus: Adopt Stannis' Policies. Once you have Invited Stannis as your King, this focus also brings in many unique spirits that have already been researched in the House of Stannis Baratheon Focus Tree. This can be very powerful in MP.
- General polish within the Political path.
- Fixed OOB naming error and improved supply in the Crownlands.
- Greatly improved the starting condition of the Crownlands army.

And more...

- Updated Yara Greyjoy portrait (and character code).
- Added Kevan Lannister as advisor to House Lannister.
- Random under-the-hood cleanups.