Add template repositories

[Mannan-Goyal]

In the submodules.json file add new template repositories for different languages and architectures in the following format -

{
        "name" : "<repo_name>",
        "url" : "<repo_url>",
        "tags" : ["<tags_relevant_to_repo>","<>","..."]
}

Please don't reference this Issue whilst opening a PR, as this issue will be indefinitely opened to encourage addition of more templates.

[mogiiee]

can you please assign this to me?

[mintbomb27]

Hey @mogiiee this will be an indefinitely open issue and you can go ahead and open a PR for the same :)