Populate package instance attributes from it's files

[swastkk]

Short Description

Currently we do not populate the copyright fields for a package instance from it's key files, yet! . Populating the package attributes correctly from their key files/other files that are a part of the package. These are the attributes that needs to be populated correctly: copyright, holders, other_license_expression, notice_text etc.

Possible Labels

• new feature
• package-summary
• GSoC

[AyanSinhaMahapatra]

Note that other_license_expression calculation is not from key files, but all package files except key files/except the declared license expression.