Migrate command `bookieinit` from shell to bkctl

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FEATURE REQUEST

1. Please describe the feature you are requesting.

• Migrate command bookieformat from shell to bkctl

2. Indicate the importance of this issue to you (blocker, must-have, should-have, nice-to-have).
   Are you currently using any workarounds to address this issue?

• nice-to-have

3. Provide any additional detail on your proposed use case for this feature.

Usage:  bkctl bookie [command] [command options]

Commands:

    init            Initialize new bookie.
    lastmark        Print last log marker

    help            Display help information about it

Use "bkctl bookie [command] --help" or "bkctl bookie help [command]" for more