Undefined elements returned from enumerateValues

[trew]

https://github.com/desktop/registry-js/blob/master/src/main.cc#L109
This line allocates an array of fixed size, which is then populated with values on these lines:
https://github.com/desktop/registry-js/blob/master/src/main.cc#L133:L149

Only REG_SZ, REG_EXPAND_SZ and REG_DWORD is supported.

If an unsupported value is enumerated, this produces an array in typescript that could end up looking like this:

[{ ... REG_DWORD value }, undefined, { ...REG_SZ value }]

The typings does not reflect that undefined is a possibility. Either the typings should change, or the array returned from the EnumerateValues function should not return empty values.