[FEATURE] improve CLI command name and parameters with consistent naming

for now, there are some naming rules on cli command name
- lower-case: ` list-all`, `add-collab`
- lowercase: `listallocations`, `addcurator`,`encryptionpublickey`
- prefix: `alloc-cancel`,`alloc-fini`
- without prefix: `get`
- fullname: `list-all`
- shortname: `ls-blobbers`

And there are some naming rules on cli command parameters
- lower-case : `rx_pay`,`free_storage`,`read_price`, `write_price`
- lowercase: `remotepath`
- fullname: `allocation`
- shorname: `collabid`,`mcct`

It is better to rename all of them with consistent naming rule.

eg `lower-case with prefix and short name`, only root file system commands should be named without prefix.

for examples:
- `mkdir`, `copy`, `upload`, `download`,`delete`...etc
- `alloc-new`, `alloc-get`, `alloc-update`

see detail on https://0chain.slack.com/archives/C01U94VF56Y/p1632609085125300

The issue is about renaming CLI commands and parameters for consistency. Start by examining the existing command definitions in the codebase, likely in files like cmd/ or main.go. Understand the current naming patterns and the proposed rules from the Slack link. Check for any tests that might need updating. 'Done' means all commands and their parameters follow a single, consistent naming convention.

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