refactor: Restructure Repository to add eta optimization

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

00_aoi_caching_simulation/experiments/README.md

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+# Experiments: No Refresh with variable TTL
+
+Explanation for files in each experiment:
+
+- `details.csv`: Access Count, Hit, Miss, Mu, Lambda and Hit Rate for each object
+- `hit_age.csv`: Shows hit rate/average age at time of request for each object.
+- `lambda_distribution.pdf`: Lambda Distribution across all objects/discrete
+  values of the Zipf distribution
+- `lambda_vs_access_count.pdf`: Displays the access count against lambda,
+  expecting a higher lambda to result in a higher access count.
+- `objects_in_cache_over_time.pdf`: Amount of cache entries at given time.
+- `overall_hit_age.csv`: Cumulative description of `hit_age.csv`
+
+Length of simulation doesn't change much since we're not touching the request
+rate across the simulations.
+Break condition for the simulation is when the each database object has been
+requested at least `ACCESS_COUNT_LIMIT` (i.e. 10) times.