Validate some more unneeded turn restrictions cases

[naoliv]

Sometimes I see some really unneeded turn restriction relations, like the ones included in this example file.

We have two no_right_turn where from is a highway and to is a footway.
From what I see it makes no sense to forbid a car to drive in the footway (of course no router will instruct the user to drive on the footway) nor it makes sense to forbid a pedestrian to make a right turn.

Could we have some kind of warning for cases like this, please?

JOSM:

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-01-08 10:43:21 +0100 (Fri, 08 Jan 2016)
Build-Date:2016-01-09 02:34:54
Revision:9345
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9345 pt_BR) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 880 MB / 3641 MB (41 MB allocated, but free)
Java version: 1.8.0_72-internal-b05, Oracle Corporation, OpenJDK 64-Bit Server VM
VM arguments: [-Dawt.useSystemAAFontSettings=on]

Dataset consistency test:
[WARN - NO NODES] Way {Way id=387220682 version=1 VT nodes=[{Node id=3905388832 version=1 V lat=-23.5578016,lon=-46.4762442}]} has only one node


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