KnowMore: Extract links about companies listed in KnowMore

This class can be used to extract links about companies listed in the knowmore.org site.

It can be used to enhance the sites with content that refer certain companies by providing links to the knowmore.org site pages about those companies.

The class extracts the list of all companies listed in knowmore.org.

It can search the list of companies and return the first that contains a given name.

The class can also search a given text for names of companies that appear in the text with square brackets, and replace those names by links to the respective company pages in knowmore.org, if they are listed there.