Add EnumTags class and generate tags for all enums

[fmatthew5876]

Introduces an enum_tags<E,N> class which provides enum to string functionality. Generator creates these for all RPG enums.

[fmatthew5876]

Added to Makefile.am

[Ghabry]

Sorry for this basic question but how am I supposed to use this? The template looks pretty straight-forward but I'm lost.

As an example lets say I want a tag-iterator for RPG::Item::Type. (accessing kTypeTags directly doesn't work, gives linker error)

[fmatthew5876]

Sorry for this basic question but how am I supposed to use this? The template looks pretty straight-forward but I'm lost.

As an example lets say I want a tag-iterator for RPG::Item::Type.

You can use it like this:

for (auto& x: RPG::Skill::kTypeTags) {
    std::cout << x << std::endl;
}
std::cout << RPG::Skill::kTypeTags[RPG::Skill::Type_normal] << std::endl;

(accessing kTypeTags directly doesn't work, gives linker error)

My fault. I forgot to provide definitions for these. static variables require a definition, although a lot of times you can get away without one in release builds.

I've added a new .cpp file for the definitions. I also found that EventCommands/MoveCommands Code::Index was missing tags. (This is actually where I wanted this feature the most!)

I've rebased this branch onto master directly, as the other stuff is not really dependent on it.

[Ghabry]

(just updated the MSVC project file, some final love for it before we drop it after 0.5.4 ^^)