Umoria 5.7.5

Notable changes

• CLI: Added a parameter to provide a custom game seed value, using -s.
• CLI: Display high scores flag now changed to -d, because of the game seed.
• CLI: Remove -o and just use the one arg (-r) for specifying (forcing)
  the use of roguelike keys (hjkl).
• Renamed the data/help files. E.g. owizcmds.hlp > help.txt.
• Support only save/score files for Umoria 5.2.2 up to 5.7.x.

Bug Fixes

• TV_NEVER was an unsigned int, but should be signed as it's being given
  a -1 value. 8c3d1d2
• The monsterTakeHit() check is now correct in spellLightLineTouchesMonster().
  b26547d
• When player was in Run/Find mode, the find_count was not being
  dereferenced, so playerEndRunning() would not be called correctly.
  95dc308

Code

• Add an optimized "release" build, with an -O2 optimization flag.
• Setting version number in version.h now updates data files automatically, via CMake.
• Release date in data/versions.txt is now set automatically via CMake.
• Rename field names for all structs in types.h.
• Rename many constants for better clarity on their purpose.
• Move the game options globals into a Config_t struct.
• Refactor main.cpp to contain [mostly] just CLI arg parsing, and some
  basic game initialization. All other game logic moved to moria.cpp.
• Lots of clang-tidy based refactoring.