Support system wide installation and usage of Notation

[priteshbandi]

Is your feature request related to a problem?

As a system administrator I want to install and configure notation in system wide directory(aka central place) and allow all other users to run it.

As a system administrator, I want to perform a system-wide installation and configuration of Notation, thereby enabling all users to execute it seamlessly.

What solution do you propose?

There can be multiple ways to support this, as a starting point, we may explore the option of supporting a configuration file(config.json) located in a predefined system-wide directory. Notation can then check for the presence of this configuration file to determine the location of the required plugins and configurations.

What alternatives have you considered?

1. Install Notation to a system-wide directory.
2. Install the plugin and create trust-store trust policy and other config files in the system-wide directory using the specified directory-structure.
3. Now, each user can set XDG_CONFIG_HOME to the directory created in step 2 and start using notation.