Add unsupported git component info in watch command help UX

[amitkrout]

/kind bug

What versions of software are you using?

Operating System:
Supported
Output of odo version:
master

How did you run odo exactly?

$ odo watch -h
Watch for changes, update component on change.

Usage:
  odo watch [flags]

Examples:
  # Watch for changes in directory for current component
  odo watch

Flags:
      --app string       Application, defaults to active application
      --context string   Use given context directory as a source for component settings
      --delay int        Time in seconds between a detection of code change and push.delay=0 means changes will be pushed as soon as they are detected which can cause performance issues (default 1)
  -h, --help             Help for watch
      --ignore strings   Files or folders to be ignored via glob expressions.
      --project string   Project, defaults to active project
      --show-log         If enabled, logs will be shown when built

Additional Flags:
      --add_dir_header           If true, adds the file directory to the header
      --log_file string          If non-empty, use this log file
      --log_file_max_size uint   Defines the maximum size a log file can grow to. Unit is megabytes. If the value is 0, the maximum file size is unlimited. (default 1800)
      --skip_headers             If true, avoid header prefixes in the log messages
      --skip_log_headers         If true, avoid headers when opening log files
  -v, --v Level                  Number for the log level verbosity. Level varies from 0 to 9 (default 0).
      --vmodule moduleSpec       Comma-separated list of pattern=N settings for file-filtered logging

Actual behavior

No message is added for unsupported git component

Expected behavior

UX should contain the unsupported git component message

Any logs, error output, etc?

[girishramnani]

This doesn't seem like high priority to me. Any reason to put high priority
/remove-priority high
/priority medium