ocm install plugins does not create the plugins-folder

[ikhandamirov]

What happened:

The command ocm install plugins can only install plug-ins, if the folder ~/.ocm/plugins already exists. If it does not, the CLI downloads the plug-in to a temporary folder, does not install it and does not show an error message.

What you expected to happen:

I'd expect the folder to be created automatically, if it does not exist.

How to reproduce it (as minimally and precisely as possible):

1. Make sure the folder ~/.ocm/plugins does not exist on your system.
2. Try to install a plug-in and check the output. For example:

% ocm install plugins -f ghcr.io/open-component-model/ocm//ocm.software/plugins/ecrplugin:0.17.0
found resource ecrplugin["architecture"="arm64","os"="darwin"]
/var/folders/l7/m6cxkwb50cz4gnbh0fkj89pr0000gn/T/plugin-2521465333: 81335650 byte(s) written

3. Execute ocm get plugins, to note that the plug-in has not been installed. For example:

% ocm get plugins
no elements found

4. Now create the folder ~/.ocm/plugins manually.
5. Re-execute ocm install plugins and ocm get plugins, and note that now the plug-in is installed.