CLI version number should not be hard coded in `src/index.ts`

[chris-decker-volusion]

Currently this instance of the version needs to be manually updated any time a new release is pushed out, which is easy to miss (and why it hasn't been done for the last 4 versions).

The version number should pull from the package.json version.

element-cli/src/index.ts

Line 19 in 05dcdeb

.version("2.0.2", "-v, --version")