feat: LRU (Least recently used) cache - different implementation

[corvo-007]

Description of Change

LRU Cache implementation
In a fixed size cache, when new item is added and the cache is full
The least recently used element is evicted from the cache

Checklist

• Added description of change
• Added file name matches File name guidelines
• Added tests and example, test must pass
• Added documentation so that the program is self-explanatory and educational - Doxygen guidelines
• Relevant documentation/comments is changed or added
• PR title follows semantic commit guidelines
• Search previous suggestions before making a new one, as yours may be a duplicate.
• I acknowledge that all my contributions will be made under the project's license.

Notes:
added LRU Cache with tests.

[realstealthninja]

LGTM thanks for this contribution.