stdlib performance

This is a relative performance of some standard library function.
String::atoi() and String::atof() are Unigine functions.

Windows (Core2 Quad 2400MHz):

atoi	Time: 0.276	FPS: 3.6231
strtol	Time: 0.278	FPS: 3.6001
String::atoi	Time: 0.095	FPS: 10.4853
atof	Time: 2.104	FPS: 0.4752
strtod	Time: 2.127	FPS: 0.4701
String::atof	Time: 0.349	FPS: 2.8644

Linux (Athlon 64 X2 2140MHz):

atoi	Time: 0.271	FPS: 3.6840
strtol	Time: 0.301	FPS: 3.3271
String::atoi	Time: 0.112	FPS: 8.9447
atof	Time: 1.337	FPS: 0.7480
strtod	Time: 1.224	FPS: 0.8168
String::atof	Time: 0.328	FPS: 3.0481