Encampment has Adjacency bonuses 1.1

It makes Encampments not so underwhelming by giving them adjacency bonuses.

Features:

1. Encampment, Ikanda and Thanh have adjacency bonuses:

- Major adjacency bonus (+2 Production) from Industrial Zone and Ley Line.

- Standard adjacency bonus (+1 Production) from Strategic Resources and Government Plaza.

- Minor adjacency bonus (+0.5 Production) from other districts and Forts (Roman Fort, Pa, Great Wall, Alcazar, Vampire Castle).

2. Bastions policy gives Encampment +100% adjacency bonus in addition to wall strength. It doesn't obsolete.

3. Japan gets +1 Production instead of +0.5 from other districts.

4. Nubian Pyramids get +1 Production when adjacent to Encampment.