Vault Management UI (first round)

[jacogr]

Integrates Vault management capabilities into the UI, closes #4452 (UI portion of #3501). Includes -

• modals/VaultCreate - create vaults with their metadata
• modals/VaultAccounts - assign/de-assign accounts to a vault
• modals/VaulLock - closes/locks a previously opened vault
• modals/VaultUnlock - opens/unlocks a closed vault
• views/Vaults accessible from the Accounts view
  • includes the store for managing vault information
• ui/VaultCard card to display a single vault
• ui/{Container,Title,ConfirmDialog} tie-in changes for display via Portal

Future work & enhancements before 1.6 -

• Change of password for Vaults
• Edit of metadata for Vaults (meta.{description, passwordHint})
• Display of associated vault under Account properties & summary (meta.vault)
• Allow moving account to vault in account summary pages
• Selection of vault on account creation

In action -

https://youtu.be/JWc01XWPf9U

[gavofyork]

@ngotchac / @derhuerst any comments before merge?

[gavofyork]

i'll presume the silence means lgtm.