Bump version to 0.1.0-alpha1

## [0.1.0-alpha1] - 2023-05-18

First release. For demo and tests. Basic linear algebra only. No graph algorithms.

### Added
- Basic functions for vectors and matrices creation
- Basic functions for vectors manipulation: map, reduce
- Basic functions for matrices manipulation: map, transpose
- Matrix-matrix element-wise functions (map2)
- Vector-vector element-wise functions (map2)
- Sparse matrix multiplication
- Kronecker product

[Unreleased]: master...HEAD