Fix obj .mtl file loading

Fix the obj file loader by adding a new method which allows
a name to be read considering the space in the middle between two
words and use that for parsing the "mtlib" line in the .obj file
parsing method.

Before, the method used in the obj parsing function would have
returned the string "mtlib NAME_OF_MTL" instead of "mtlib" only,
which resulted in the .mtl file being never parsed.

code/ObjFileParser.cpp

@@ -178,7 +178,7 @@ void ObjFileParser::parseFile( IOStreamBuffer<char> &streamBuffer ) {
             {
                 std::string name;
 
-                getName(m_DataIt, m_DataItEnd, name);
+                getNameNoSpace(m_DataIt, m_DataItEnd, name);
 
                 size_t nextSpace = name.find(" ");
                 if (nextSpace != std::string::npos)

code/ObjTools.h

@@ -165,6 +165,47 @@ inline char_t getName( char_t it, char_t end, std::string &name )
     return it;
 }
 
+/** @brief  Get a name from the current line. Do not preserve space
+ *    in the middle, but trim it at the end.
+ *  @param  it      set to current position
+ *  @param  end     set to end of scratch buffer for readout
+ *  @param  name    Separated name
+ *  @return Current-iterator with new position
+ */
+template<class char_t>
+inline char_t getNameNoSpace( char_t it, char_t end, std::string &name )
+{
+    name = "";
+    if( isEndOfBuffer( it, end ) ) {
+        return end;
+    }
+
+    char *pStart = &( *it );
+    while( !isEndOfBuffer( it, end ) && !IsLineEnd( *it )
+          && !IsSpaceOrNewLine( *it ) ) {
+        ++it;
+    }
+
+    while( isEndOfBuffer( it, end ) || IsLineEnd( *it )
+          || IsSpaceOrNewLine( *it ) ) {
+        --it;
+    }
+    ++it;
+
+    // Get name
+    // if there is no name, and the previous char is a separator, come back to start
+    while (&(*it) < pStart) {
+        ++it;
+    }
+    std::string strName( pStart, &(*it) );
+    if ( strName.empty() )
+        return it;
+    else
+        name = strName;
+
+    return it;
+}
+
 /** @brief  Get next word from given line
  *  @param  it      set to current position
  *  @param  end     set to end of scratch buffer for readout