Allow Voting on Budget Investments in Management menu

[coslajohn]

Is your feature request related to a problem? Please describe.
In user management it is possible to support a budget investment but it isn't possible to vote on a budget investment
Voting is the most important feature you would want to be able to do as the purpose of this management is to allow a council officer to carry out an action on behalf of a user

Describe the solution you'd like
A menu link to Vote on budget investments. Clicking on this link would take you to the budget investment index page where you could cast the vote as a user. The process would be identical to the Support Investment process below

The existing process for supporting a budget proposal is
Select user
Choose the budget you want to register support

The register support for the individual project

This is linked to issue to allow management on behalf of all users, not just those in the local census