feat(bundler): initialize msi install path with previous location

[FabianLars]

With this PR we now save the installation directory to the registry and use that value to initialize the default install dir on following installations (upgrades).
This was requested a few times so that tauri's buit-in updater doesn't default to C:\Program Files\app_name (ofc useful for manual update-installations too).

The default path if the reg key doesn't exist is the same as before.

I intentionally added the reg value stuff in a separate Component (for clarity) and inside a RegistryKey object (for extensibility).

With this change i also changed manufacturer to be the middle part of the bundle identifier instead of the whole thing. This was imho just plain wrong.
The whole bundle identifier is still used as the AppId, mainly because notifications don't work without it.

Furthermore I changed the dummy registry values used as keyPaths for the shortcuts to be all in the same registry "folder".
Instead of having an installed key in 3 locations, we now have 3 different (dummy) keys in the same path, much cleaner imo.

Just to be extra clear, this is not a breaking change. New installers are still compatible with previous ones. Upgrading old installations with the new installer works normally (old reg keys will be removed by the old uninstaller).

What kind of change does this PR introduce?

• Bugfix
• Feature
• Docs
• New Binding issue #___
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes, and the changes were approved in issue #___
• No

Checklist

• When resolving issues, they are referenced in the PR's title (e.g fix #___, #___)
• A change file is added if any packages will require a version bump due to this PR per the instructions in the readme.
• I have added a convincing reason for adding this feature, if necessary

[lucasfernog]

could use a change file here

[FabianLars]

should it mention the registry key too or is this enough?

[lucasfernog]

LGTM