Special Funds template + updates to fixtures

* Adds a fixture which contains the general fund and the global fund
* Updates the "issues" fixture to use accounting codes
* Adds a template for the "special funds" page
* Manipulate the memorial funds a bit so that they are ordered by volunteer's name and only the volunteer's name is shown (instead of "John Jones Memorial Fund"). We may want a separate memorial fund model again, as they also need access to additional images, but we can cross that bridge later