Do not require elevation for informative functions for Admin in non-admin shell

Since version 0.10.4 choco by default "Run with highestAvailable Execution Level by default". This can be disabled via manifest.

However, its ideal for this to be dynamic. The elevation should happen on install, update or uninstall and not on list, info, version and other informative or config functions.

I propose the very easy method to fix this: by changing the `cinst`, `cup` and `cuninst` wrappers to switch to `higestAvailable` level and restore it back after the run, so that user can set manifest to `asInvoker`. The non-wrapped commands would still elevate (or not, as per settings) on each command, but users will have an option this way.

With this in place it could be considered to set defaults to asInvoker.

Start with the cinst, cup, and cuninst wrappers and the manifest elevation setting described in the issue. Trace how informative functions such as list, info, and version differ from install, update, and uninstall. Done means informative or config commands can run without elevation while installation changes still follow the configured elevation behavior.

Written by the indexing model from the issue text.