Make names of direct/indirect roles/privilege consistent in rolesInfo and usersInfo

Currently usersInfo and rolesInfo have "roles", "indirectRoles", and "privileges" fields, though "privileges" represents the full set of privileges from the user's full set of indirect roles.

I propose renaming "indirectRoles" to "inheritedRoles" and the current "privileges" field to "inheritedPrivileges", and adding a new field to rolesInfo called "privileges" that is just that role's direct privileges.

This also includes the benefit of providing a way to see just the direct privileges of a role via rolesInfo, which is important to have when managing (especially removing) the privileges that a role has.