Investigate precompiled header application

[gbenziv]

See if it is worth to use precompiled headers with the current project scale

[gbenziv]

Possibly move all the commonly used standard headers:

#include <functional>
#include <iomanip>
#include <map>
#include <memory>
#include <mutex>
#include <regex>
#include <sstream>
#include <string>
#include <utility>
#include <vector>

and utilities

#include <logger/loghelper.hpp>

[gbenziv]

just realized cpplint complains about missing includes.. will not implement this for now