CamelCase style union tag.

[cathaysia]

cbindgen will generate SnakeCase style tag for union currently, if it's possible generate CamelCase tag?

such as if we have:

typedef enum Foo_Tag {
  A,
} Foo_Tag;

typedef struct Foo {
  Foo_Tag tag;
  union {
    struct {
      float a[20];
    };
  };
} Foo;

void root(struct Foo a);

I hope it can be:

typedef enum FooTag {
  A,
} FooTag;

typedef struct Foo {
  FooTag tag;
  union {
    struct {
      float a[20];
    };
  };
} Foo;

void root(struct Foo a);