[FEAT] Bechmark Matrix operations

[KjetilIN]

🚀 Feature

Description
Tests that benchmark the Matrix. Check its performance. Benchmark the most important Matrix operations (and find out what they are)

Proposed Solution
More research is required here. There is a common bench marking packages used for bench marking in Rust.

Should also add a markdown file of bench mark times, and then add it to the REAME.md file (as refrence).
Should be done before v0.1.0. See issue #18

Additional Context / Resources
Check other libraries in Rust. They have structured benchmark tests within the ./tests/ folder.

[KjetilIN]

Basic Matrix multiplication benchmark:

[KjetilIN]

With larger size:

[KjetilIN]

Added these two benchmarks in branch for the issue #6

Moved to backlog for now