Add soldier count to the resource list

[bwDraco]

I'd like to see a count of the number of soldiers in the resource list, just below the citizen count.

Soldiers provide food and furs. However, this is not as clearly indicated as it should be in the game's UI, and it's led to situations where soldiers dying after a military action resulted in my civilization running out of food. This is most likely to happen with carnivorous beast races because the food spoilage mechanic encourages maintaining a tight balance between having enough hunters to ensure a sufficient food supply, but also having as many citizens as possible employed in other jobs to avoid waste. Additionally, soldiers count towards the number of Plasmids awarded whenever the game is reset. As a result, being able to see this information at a glance would be helpful.