Add a "Reset Password" option

[grantfitzsimmons]

Instead of setting a placeholder password and instructing a user to change it, there should be some option to reset the password where you can send them a single-use link so that they can set their own.

[maxpatiiuk]

How the change password form might look like:

[bronwyncombs]

Requested from CSIRO Mineral Resources team via asana and discourse:

They request this ability be added or have the ability to add it to the login page.

How can the user request a reset (forgot) password from the login window?