Add support for templates - daily notes template

[LA-Toth]

A template directory can be specified for various templates: obsidian-templates-directory
And a template file name in the directory for the daily notes, obsidian-daily-note-template, default: Daily Note.md

If these are set, the daily note is created from the template.
Obsidian's placeholders can be used:

• {{title}} - the file name itself without extension
• {{date}} Current date like 2023-12-07
• {{time}} Current time like 23:05:42

[licht1stein]

Thanks for the PR! When adding new features it's necessary to also update the README. Otherwise nobody will know :)

[LA-Toth]

Thanks for the PR! When adding new features it's necessary to also update the README. Otherwise nobody will know :)

Done. I updated the README with the documentation of previously added features.