Revert "Remove SLNetworkComm project and merge it with METAbolt itself"

This reverts commit 3d874e70fce592fc88df0c29371a12a6c435fc8e.
Revert "Remove SLNetworkComm from the repo, since it is built by the solution"

This reverts commit eac75e205615c079507b2aa0207df62d2625a396.