improve `vault keys list` with filters and metadata info

[gitmank]

vault keys list can have filters like:

• show only private keys
• show only asymm keypairs
• show only symm keys
• show [AES | RSA | ECC ] keys

[gitmank]

this can be added to vault keys show also

[siphyshu]

vault keys list can also show some basic key info like algo, createdAt, lastUsed, etc. in a tabular format

[gitmank]

can we remove the show command then? we can use vault keys list --alias for specific keys?

[siphyshu]

removed in 6934cfe 👍