Biome colour and grass side tint options (#98)

* Added biome colour and grass side tint options

* Moved GrassColor and FoliageColor to client/renderer/

* * Fix some build issues.

* * Add the new files to the CMakeLists.txt

---------

Co-authored-by: iProgramInCpp <iprogramincpp@gmail.com>

source/world/level/Region.cpp

@@ -106,6 +106,11 @@ bool Region::isSolidTile(int x, int y, int z)
 	return pTile->isSolidRender();
 }
 
+BiomeSource* Region::getBiomeSource()
+{
+	return m_pLevel->getBiomeSource();
+}
+
 Region::~Region()
 {
 	delete[] field_C;