Change `UTDAQ::computeGeometry` to make it usable for `addConditionsDerivation`
- Instead of taking 'OUT' parameters as arguments, just return the result.
This simplifies its use with
addConditionsDerivation
- Keep a backwards compatible version, implemented in terms of the new calling convention
- In addition, use
namespace LHCb::UTDAQ
in the implementation instead of prefixing every function withLHCb::UTDAQ::