Thumbnail Creation crashing and dependencies

[BenShoeSpectric]

Thumbnail creation uses png, which IQ engine does not support, does not support ci8_le type and a few others, which is a bit nonsensical of a type, but the metadata generation tool adds the _le automatically so I figure it is best to idiot proof it. Also can crash due to excessive RAM usage and no clean up. Also the tool was OS dependent. To fix, I did the following:
changed type from png to jpg
added optimization on the jpg conversion
added memory cleanup
added multiple new types to be supported.
added Linux OS compatibility