feat: Project management and session management additions

[drstrangelooker]

Initial project management commands ls and cat

$ exe/gzr project help
Commands:
  gzr project cat PROJECT_ID  # Output json information about a project to screen or file
  gzr project help [COMMAND]  # Describe subcommands or one specific subcommand
  gzr project ls              # List all projects

Workspace selection in session management

$ exe/gzr session help
Commands:
  gzr session get                  # Get data about current session
  gzr session help [COMMAND]       # Describe subcommands or one specific subcommand
  gzr session login                # Create a persistent session
  gzr session logout               # End a persistent session
  gzr session update WORKSPACE_ID  # change the workspace_id of the current session

The gzr session get command retrieves the workspace_id of the current session. The gzr session update WORKSPACE_ID sets the workspace to production or dev. session update only makes sense when using a persistent session.

[github-actions]

Ruby-CI Tests

    4 files      4 suites   1m 22s ⏱️
136 tests 136 ✔️ 0 💤 0 ❌
544 runs  544 ✔️ 0 💤 0 ❌

Results for commit d530961.

[jkaster]

LGTM