[PATCH] update tower:type values

[naoliv]

They are all documented values and have a significant usage (at least 500+)
The different tower types are also rendered in the default OSM style (​https://github.com/gravitystorm/openstreetmap-carto/pull/2671)

data/defaultpresets.xml

@@ -7030 +7030 @@
             <space />
             <key key="man_made" value="tower" />
             <text key="name" text="Name" />
-            <combo key="tower:type" text="Tower type" values="communication,observation" />
+            <combo key="tower:type" text="Tower type" values="bell_tower,communication,cooling,defensive,observation,radar,watchtower" />
             <optional>
                 <text key="height" text="Height (meters)" />
                 <text key="operator" text="Operator" />

[Don-vip]

What about tower:type=lighting? 9500 uses.

[naoliv]

tower:type=lighting is for man_made=mast
​https://wiki.openstreetmap.org/wiki/Key:tower:type

[Don-vip]

OK, we have #10759 to add man_made=mast. Time to check if the confusion between tower, mast and antenna has been clarified on the wiki.

[Don-vip]

In 13971/josm:

fix #16412 - update tower:type values (patch by naoliv)