The conformance tool webpage needs to handle inline comments

As the RFC says:

> Comments are started by a ";" (semicolon) character and finish at the end of a line (LF or CRLF)

but the conformance tool at https://cddl.anweiss.tech/ throws errors when they exist.

```
Version = [
    major: u32, ; comment
    minor: u32,
    patch: u32,
]
```

Results in:

> invalid group entry syntax
> 
> missing definition for rule Version