Use longer variable names for clarity

[#63074062]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>
Extract factory to create running logger

[#63074062]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>
Move CreateRunninAccessLogger into access_log package

[#63074062]

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>