Handle* - implement

[skynowa]

• (+) File
• (+) Dll
• (+) CurlClient
• (+) MYSQL
• (+-) Dir
• (+) FileTemp
• (+) Finder
• (+) Socket
• (TODO) Ssh2Client

• (TODO) Sync

• https://github.com/facebook/watchman/blob/master/FileDescriptor.h

• https://stackoverflow.com/questions/41104320/c-copy-constructor-of-object-owning-a-posix-file-descriptor

Review

(+) Class::isValid()
Class::close()