[As requested in the comments to PR microsoft#89](microsoft#89 (comment))

[As requested in the comments to PR microsoft#89](microsoft#89 (comment))

Changed template parameter names from Pascal case to snake case, with _t suffixes where appropriate
Split function template parameters into a type parameter and a value parameter; as a result, the details::QueryUnbiasedInterruptTime wrapper is now unnecessary

[As requested in the comments to PR microsoft#89](microsoft#89 (comment))

Moved the optional constexpr specifiers of details::execution_times_from_filetimes and details::get_cpu_time to their appropriate places

Added the inline specifier to the inline functions that were missing it

Added clarifying comments to some #endifs

Don't mix typename and class in template parameter lists

Delimit the code regions for thread/process times functions and thread/process CPU time clocks

In the non-template overload of current_thread_cpu_time_clock::now, call the non-template overload of get_thread_cpu_time; in the non-template overload of current_process_cpu_time_clock::now, call the non-template overload get_process_cpu_time. This makes sure the two methods inherit the error policy of the underlying functions

constexpr implies const