[IXD] Compiler should generate also the enums including their values

[TomKovac]

https://console.simatic-ax.siemens.io/docs/st/language/types-and-variables#data-type-with-named-values
https://console.simatic-ax.siemens.io/docs/st/language/types-and-variables#enumeration

[Brano5]

/cib

[PTKu]

Branch 177-_IXD_Compiler_should_generate_also_the_enums_including_their_values created!