add all major modifications. Everything was already shown in call video with authors

[wilsonrljr]

• I have made changes in all funcions so we have already made a call to explain everything.
• Added new features (Extended Least Squares, Recursive Least Squares, Total Least Squares and several adaptative filters Least Mean squares based)
• New code structure
• All new documentation
• Tests in main functions
• Rewrite core functions like build information matrix and many others;
• Change Readme.md
• Add double check to every parameter
• New docstrings
• Added notebook examples
• Added more residual analysis
• Many more