Add configurable location for _NetManaged folder.

[MayGo]

Currently, definitions are created into this library source code:

Can we make Parent configurable?

rbx-net/src/internal/index.ts

Line 88 in 5cde004

const location = script.Parent!;

Would like that _NetManaged folder would be directly under ReplicatedStorage
ReplicatedStorage->_NetManaged->toggleCampaignStartButton

Little bit of background:

I want to implement code Hot Reloading and current problem is that _NetManaged folders gets removed, if I run Rojo and files are synced.

[MayGo]

Tested this change out locally. And it would not fix my situation.
It is because of rojo. rojo-rbx/rojo#559

[Vorlias]

This was an intentional design decision because it prevents any potential weird behaviours where two incompatible versions of Net might be in your project (e.g. another version from a package)

Also was to ensure that the remotes in the folder are 100% guaranteed that net is the one who created and is managing them.