Package/Moduele wise Initial Data for Module Initialization

[nipunanr]

Is your feature request related to a problem? Please describe.
When setting up a new module or package in Frappe Framework, there's often a need to prepopulate certain doctypes with initial data. This process can be time-consuming and repetitive, leading to frustration and errors.

Describe the solution you'd like
I would like the ability to add initial data to doctypes when installing a new module or package. This feature should allow users to specify the initial data they want to include for each doctype. For example, when installing a package related to machinery management, users should be able to specify initial data such as "Large Machines," "Agri Machines," and "Cutting Machines" for the "Machine Type" doctype.

Describe alternatives you've considered
One alternative is to manually add initial data after installing the module or package. However, this process is inefficient and prone to errors, especially when dealing with large amounts of data.

Additional context
This feature would greatly improve the setup process for new modules and packages in Frappe Framework, streamlining the initialization of doctypes and reducing the chance of errors.

[cogk]

Maybe you could be interested in fixtures? https://discuss.frappe.io/t/custom-app-understanding-fixtures/115794/2. How would your feature request differ from fixtures?

Maybe you could create the documents using code in the after_install hook?

[nipunanr]

@cogk Mainly the differance is the fixtures are highly code related thing. But with all the features in Frappe at the moment, we can create custom Package from Frontend without any effort. So it will be good if this also can be done from frontend/Frappe Interface.