Hillshading support

[nono303]

Hi @IgorMagellan & Thx for taking over @maki ;)

Quick patch to add Hillshading support (tested and working find on Orux, mapsforgesrv & Cruiser)
++NoNo

diff --git a/Tiramisu.xml b/Tiramisu.xml
index 2125062..ac4549f 100644
--- a/Tiramisu.xml
+++ b/Tiramisu.xml
@@ -356,6 +356,8 @@ version="5" map-background="#ffffff" map-background-outside="#ffffff">
 	<rule cat="tms_terrain" e="way" k="natural" v="sea"> <area fill="#85a7ff" /> </rule>
 	<rule cat="tms_terrain" e="way" k="natural" v="nosea"> <area fill="#ffffff" /> </rule>
 
+<!-- Hillshading -->
+	<hillshading zoom-min="8" zoom-max="18" magnitude="64"/>
 		
 <!-- landcover -->