Add random number generator (!77)

## What is the new feature
This PR adds a new module for random number generations. It contains a parallelization uniform random number generator and a normal random number generator.
## How is it implemented
The uniform random number generator uses the Lehmer random number generator.
The normal random number generator uses a Box-Mueller transform using the uniform random number generator.

Approved-by: Yen-Chen Chen <yen-chen.chen@kit.edu>
Merged-by: Yen-Chen Chen <yen-chen.chen@kit.edu>
Changelog: feature