neural-fortran-0.4.0

What's Changed

• Add note about downloading MNIST data without curl by @milancurcic in #67
• Forward pass for the conv2d layer by @milancurcic in #65
• Forward pass for a max-pooling layer by @milancurcic in #66
• Fix layers summary table by @milancurcic in #70
• fix #72 - use dir tree to expose user API by @rouson in #74
• Clean up example and add a note to emphasize the user API by @milancurcic in #76
• Fix CMake build for the new src directory structure by @milancurcic in #77
• Implement a flatten layer by @milancurcic in #75

Full Changelog: v0.3.0...v0.4.0