Add cache with LIFO replacement policy (TheAlgorithms#6390)

* Added Random Replacement cache

* Implement cache with LIFO replacement policy

* Ran clang-format

* Make necessary variables final, replace HashMap.newHashMap(int capacity) with new HashMap<>(int capacity)

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Co-authored-by: Deniz Altunkapan <[email protected]>

Author: KevinMwita7