Medical - Improve saline infusion handling

[denispol]

When merged this pull request will:

• Align dose cloning with the engine’s clone-before-apply pattern by adding ACE_Medical_Dose::CloneDose and ForceExpire() to guarantee per-patient instances.
• Override CloneDose() in bolus and infusion to copy subclass fields and reset flags, and add ACE_Medical_Infusion::Stop() with expiration based on blood-flow–scaled rate.
• Scale IV infusion delivery by circulation in ACE_Medical_Infusion::ComputeConcentration using ACE_Medical_GetBloodFlowScale().
• Pass ACE_Medical_CharacterContext and float timeSlice through ACE_Medical_Medication_SimulationJob and all ApplyEffect overrides to match the engine’s EOnFrame(float timeSlice) processing.
• Implement ACE_Medical_ConsumableSalineInfusion (subclass of SCR_ConsumableSalineBag) that clones configured doses server-side and prevents stacking active SALINE infusions (a single saline bag can be administered at the time being).
• Add ACE_Medical_SalineBagUserAction to validate consumable availability and wire UI text/icon for starting the infusion.
• Update SalineBag_01_base.et to use the new consumable, zero absolute regeneration, and configure a single ACE_Medical_Infusion prototype at 0.83– ml/s for 600 s.
• Introduce ACE_Medical_EDrugType::SALINE and add SALINE pharmacokinetics to Settings.conf (activation/deactivation = 1) so fluid calculations use config.
• Add ACE_Medical_MedicationComponent::StopInfusionsForDrug to stop and force-expire SALINE infusions automatically when blood volume reaches capacity.
• Expand diagnostics under ENABLE_DIAG (via ACE_Medical_Medication_DiagState) to display base/effective ml/s, delivered volume, bag capacity, and patient uptake with smoothed readouts.

Documentation not updated