Allow the creation of signature blocks for use with all email templates (membership, event and manual)
Similar to any email interface, allow the creation of signature blocks for use in all email templates (membership, event, and manual). Existing organization macros do not contain all information that may be contained in a signature, i.e. company address, phone number. In our organization, emails mail be signed by the one of the Board members, committee chairs or committees, but come from the same organization email address.