chore: add yaml and toml dependencies, and create script for converting YAML to TOML

- Added 'yaml' and '@iarna/toml' dependencies in package.json.
- Created a new script.js file to process YAML files and convert them to TOML format.
- Added template.toml files for various blueprints in the blueprints directory.

blueprints/invoiceshelf/template.toml

@@ -0,0 +1,19 @@
+[variables]
+main_domain = "${domain}"
+db_password = "${password}"
+db_username = "invoiceshelf"
+db_database = "invoiceshelf"
+
+[config]
+mounts = [ ]
+
+  [[config.domains]]
+  serviceName = "invoiceshelf-app"
+  port = 80
+  host = "${main_domain}"
+
+  [config.env]
+  INVOICESHELF_HOST = "${main_domain}"
+  DB_PASSWORD = "${db_password}"
+  DB_USERNAME = "${db_username}"
+  DB_DATABASE = "${db_database}"