Core/MMAPs: Improve NPC behavior with fences and high climbs

Increase the max walkable angle and max walkable climb in MMAPs generator to allow NPCs to jump on fences and climb steps.
This requires MMAPs to be extracted again with mmaps_generator, old extracted MMAPs are still compatible but will not provide the benefits of this commit.
Fixes #9965

src/tools/mmaps_generator/MapBuilder.cpp

@@ -553,7 +553,9 @@ namespace MMAP
         config.borderSize = config.walkableRadius + 3;
         config.maxEdgeLen = VERTEX_PER_TILE + 1;        // anything bigger than tileSize
         config.walkableHeight = m_bigBaseUnit ? 3 : 6;
-        config.walkableClimb = m_bigBaseUnit ? 2 : 4;   // keep less than walkableHeight
+        // a value >= 3|6 allows npcs to walk over some fences
+        // a value >= 4|8 allows npcs to walk over all fences
+        config.walkableClimb = m_bigBaseUnit ? 4 : 8;
         config.minRegionArea = rcSqr(60);
         config.mergeRegionArea = rcSqr(50);
         config.maxSimplificationError = 1.8f;           // eliminates most jagged edges (tiny polygons)

src/tools/mmaps_generator/MapBuilder.h

@@ -61,7 +61,7 @@ namespace MMAP
     class MapBuilder
     {
         public:
-            MapBuilder(float maxWalkableAngle   = 55.f,
+            MapBuilder(float maxWalkableAngle   = 70.f,
                 bool skipLiquid          = false,
                 bool skipContinents      = false,
                 bool skipJunkMaps        = true,

src/tools/mmaps_generator/PathGenerator.cpp

@@ -242,7 +242,7 @@ int finish(const char* message, int returnValue)
 int main(int argc, char** argv)
 {
     int threads = 3, mapnum = -1;
-    float maxAngle = 55.0f;
+    float maxAngle = 70.0f;
     int tileX = -1, tileY = -1;
     bool skipLiquid = false,
          skipContinents = false,