Sandbox inboxes

Operations for sandbox inboxes.

• GETList sandbox inboxes/api/v1/sandbox/inboxes
• GETGet sandbox usage/api/v1/sandbox/usage
• POSTCreate a sandbox inbox/api/v1/sandbox/inboxes
• GETGet a sandbox inbox/api/v1/sandbox/inboxes/{id}
• PATCHUpdate a sandbox inbox/api/v1/sandbox/inboxes/{id}
• DELETEDelete a sandbox inbox/api/v1/sandbox/inboxes/{id}
• GETGet a sandbox inbox's SMTP credentials/api/v1/sandbox/inboxes/{id}/credentials
• GETGet a sandbox inbox's public link and access code/api/v1/sandbox/inboxes/{id}/share
• POSTEmpty a sandbox inbox/api/v1/sandbox/inboxes/{id}/empty
• POSTReset a sandbox inbox's SMTP credentials/api/v1/sandbox/inboxes/{id}/reset-credentials
• PATCHTurn a sandbox inbox's public link or access code on or off/api/v1/sandbox/inboxes/{id}/share
• POSTGive a sandbox inbox a new access code/api/v1/sandbox/inboxes/{id}/share/new-code
• POSTGive a sandbox inbox a new public link/api/v1/sandbox/inboxes/{id}/share/reset-link