3d: allow fields that consume all input

[tahina-pro]

This PR allows adding a field at the end of a typedef struct definition to consume the remainder of the input:

typedef struct _test {
   UINT32 my_field;
   UINT8 remainder[:consume-all];
} test;

The remainder field uses the parse_all_bytes parser, which does not have the strong prefix property, so this field must be at the end of the struct.

Similarly, such a field makes its enclosing type test lose the strong prefix property, so the type itself must be used either at the end of a struct, or with a [:byte-size n], [:byte-size-single-element-array n] or [:byte-size-single-element-array-at-most n] container.

[nikswamy]

Unrelated?

[tahina-pro]

In fact, this is relevant here: I see no reason to reject UINT8BE remainder[:consume-all]

[nikswamy]

Looks good to me, thanks! A bit surprised by UINT8BE ... but I guess it's good for uniformity.