Using lower case

[mortezafayazi]

Based on what we have discussed, we will use the lower case letters for our final outputs.
Memory:
So, would you please change "Power" to "power" and AspectRatio to "aspect_ratio" in the mem-gen output json file?
PLL:
would you please change "Fnom_min" to "fnom_min", "Fnom_max" to "Fnom_max" and "aspect ratio" to "aspect_ratio" in the pll-gen output json file?