Drop-in replacement for select() that supports ORed keys.
Example:
```build
deps = selects.with_or({
"//configs:one": [":dep1"],
("//configs:two", "//configs:three"): [":dep2or3"],
"//configs:four": [":dep4"],
"//conditions:default": [":default"]
})
```
Key labels may appear at most once anywhere in the input.
</p>
</td>
</tr>
Variation of with_or that returns the dict of the select().
Unlike select(), the contents of the dict can be inspected by Starlark macros.