Add the travel thru links functionality

[igormcsouza]

Sometimes I add links to websites that has more links which would be nece to participate on the entire vector store, the functionality can follow the aspects below

• Should be able to look for links on the website/pdf and process its content and add to the corpus
• User should be able to set up the depth of the travel, but there should be a max value (like 3) more testes can be made
• Find a way to make sure to get the links that are actually useful to the context and not propaganda or something like that
• There shoud be a documentation and limitations explanations somewhere