Fix some compiler warnings. Correct spellings in comments.
+ Added Renesas RXv2 port for IAR. Demo apps: + Demo/Rename the CORTEX_R4F_T_GCC_IAR_ARM directory to just Rename the CORTEX_R4F_T_GCC_IAR. + Add IAR project for the RX113. + Add RX231 e2studio projects for the RX231.