end of maintain: use
https://pecl.php.net/package-changelog.php?package=pinpoint_php
- build on win32
- build on macos
- support SendSpanTimeOutMs=-1
- add pinpoint_get_caller_arg
- add _pinpoint_join_cut and test case
- rename api naming
- add pinpoint_get_this api and test case
- remove php5 support
- support common library v0.5.0