Inconsistent casing in BaggageTypeEnumeration

[skinkie]

Within #245 I have noticed inconsistent use of casing.

This may have a high impact.

[Aurige]

which casing inconsistency ?

[skinkie]

At least pushChair vs wheelchair.

[Aurige]

since it's also quite common to find "push chair" in 2 words, this is probably not critical

[skinkie]

Ok lets leave it at this.