Support for GIF Animation Loop Count

[ItsMeAshiq]

The current output gif files are always set as Infinite looping animations.

It would be cool if we have a parameter to specify the loop count for any special cases.

It is hard coded in the gif.h library implementation.

[dataflowg]

👍 Should probably also add the loop count as an output from Load Animated GIF Image.vi

[dataflowg]

Setting the loop count has been added to v0.5.0. Reading the loop count in Load Animated GIF Image.vi is TBD, so leaving this issue open.