Handle semver identifiers in status command

[spalladino]

Given a project with a stdlib ^1.0.0 in zos.json, and 1.0.1 in zos.local.json, running a status command will print a warning that the stdlib versions do not match:

~/Projects/zeppelinos/test/example$ npx zos status -n local
[...]
Standard library:
- Stdlib stdlib@^1.0.0 required by current version
- Deployed application is connected to different stdlib [email protected]