[Microchip PIC] diverse versions for C-Compilers

From this [MPLAB C Compilers] link, we can find out the diverse-versions introduction:
MPLAB C Compilers - Installing and Upgrading。

Time-Limited Standard Evaluation Edition.
時效過後, 就不再能夠作"最佳化"..
and~
Lite Edition.
Lite版本, 不能夠作"最佳化"..