[RFC] Automate enumValues generation

When dealing with SQL databases most of the times the enums will store simply integer values, like:
```ts
enum Sex {
Male = 0,
Female = 1
}
```
Having to specify the following for each of them could be annoying:
```ts
enumValues:
Sex:
MALE: 0
FEMALE: 1
```

It would be nice to have a way to specify defaults other than the name of the value.

Something like:
```ts
enumDefaultValues: to-integer#toInteger
```
which would be obviously overridden by `enumValues` itself.