Offers we receive for more resources than we have are invalid

Resolved  - fixed Guruship belief

Was unable to upload previous version to Google Play, re-attempting

By vegeta1k95:
- Mod sizes are updated to proper values upon selection 
- Fix UI bugs 
- Fix centering of unit HP bar 
- Improvements to construction table 

AbsoluteUnits - Berserker, Samurai, Longswordsman_v2  - By letstalkaboutdune

By Gualdimar:
- Fixed selecting an improvement switched to another unit even if the setting is disabled 
- Fixed missing unimproved resources in the overview table 
- Research agreement cost display