feat: add subcommand for generating runtime-index

[algomaster99]

Add a simple classfile transformer that would record all classes at runtime. This would be the third part of the indexer.

TODO:

• Write tests
• Test it out with apache pdfbox
• See if can distinguish a runtime class. I need it for a deserialising the jsonl file. For example, I used GAV for maven and path for jar classes. (Used runtime: true for that, not the nicest solution but let's see)