Don't fail without `outDir` in tsconfig.json when `denoify.out` is specified in package.json

[KillyMXI]

I only needed declarationDir for my project.
It's no big deal - I lost nothing from specifying outDir instead.
I just see no reason why it should fail when enough info is supplied via other config keys.
Expected logic is:
"If specific value (denoify.out) is provided then run with it, otherwise try to construct a fallback value based on outDir."

[garronej]

Ok got it