define platform-specific functions
add posix implementation of milliseconds query
force milliseconds to 64-bit width and rework arithemetic to reduce risk of overflow
use msecs calculation to properly display elapsed time
use max int types for comparable value
update cinytest output to use max int and uint types
remove unused parameter to footer printing
remove unnecessary locals
add unit tests for max int and max uint assertion behavior
mark void pointer parameter as restrict for private function (can't make this guarantee for public assertions, who knows what users will do)
update readme documentation
Merge branch 'elapsed-time'