Storjshare add protocol and core version information

[littleskunk]

Package Versions

Replace the values below using the output from storjshare --version.

2.0.4

Replace the values below using the output from node --version.

v6.9.4

Expected Behavior

Please describe the program's expected behavior.

storjshare --version should print out the storj-lib and protocol version

Actual Behavior

Please describe the program's actual behavior. Please include any stack traces
or log output in the back ticks below.

storjshare --version
2.0.4