v3_15_00

What's Changed

• Removed methods from global namespace, update usage by @eflumerf in #33
• quick-spack-start-changes by @ron003 in #35
• Remove references to Shmem transfer, use TCPSocket instead by @eflumerf in #34
• Remove remaining references to deprecated board_id parameter by @eflumerf in #36

Full Changelog: v3_14_01...v3_15_00