v1.1.0 release

Version: 1.1.0 --- 2022-02-20

Description: major fixes and improvements.

Fixed

• Avoid gradient accumulating in deep learning problem;
• Prevent memory leak problem when using torch tensor. See ex6 perceptual attack.

Changed

• Update format of user-defined variables when using pygranso interface.

Packaging

• Publish pygranso package on Pypi.

Added

• Add examples: ex 10 dictionary learning with torch.nn module; ex 11 orthogonal recurrent neural networks.