Fix bug in TPB optical properties

What's Changed

• Dist sampler by @kvjmistry in #171
• Add 2nu ECEC generator by @gonzaponte in #197
• Add Polished Aluminium material by @mariandbt in #195
• Using different files formats in the output histogram of the validation tracking action by @paolafer in #198
• Fix for Geant4 1.11 by @atrettin in #202
• Remove superfluous examples of macros by @paolafer in #199
• Fix order of energies by @paolafer in #203

New Contributors

• @mariandbt made their first contribution in #195
• @atrettin made their first contribution in #202

Full Changelog: v7_03_01...v7_04_00