Move ENABLE_RADIATION up to components

Compile control with `cmakeFlags` for species does not work the other way around for now.

Reported by @PrometheusPi , thx!

Moves `ENABLE_RADIATION` to `componentsConfig.param` which is the right place for such an option.

**Changed `.param` files:**
  - `radiationConfig.param`
  - `componentsConfig.param`