remove unused imports in startup selector_mesh

create trigger tick_resident_moveins

cargo fmt resources/

change default MoveinRate::rate to 1.0 (from 0.25)

create MoveinRate resource

update trigger tick_money_increase to pay taxes

change ResidentialTax::rate from f32 to f64

cargo fmt

create resource ResidentialTax

cargo fmt

create forwarder spawn_building_entities

create executor spawn_residential_buildings

add field residents to CreateResidentialBuildingMessage

derive Component for ResidentialBuilding

create ResidentialVariant::get_capacity