[ver. 1.2.1.0] Buffed the progress at the beginning of the game!!

Buffed the progress at the beginning of the game
Balanced : Buffed nitro activation time
Balanced : Buffed block gains
Balanced : Buffed Improvement gains
Balanced : Decreased the cost of unlocking blocks
Fixed : a bug of research in Base Improvement of Challenge

Thank you for playing IEB and giving wonderful feedback.
Based on your feedback, we much buffed the progress at the beginning of the game. Please try it again :)
While offline, nitro is charged a lot and you can progress much faster with nitro booster, so let's use it!
We will keep developing and improving IEB more and more. Anyway, thank you for continued supports!