Improve sendRequest & sendRequest2

[FelicianoTech]

sendRequest & sendRequest2 are two functions that do almost exactly the same thing. The former is for the unique Docker Hub specific API and the second for the generic Docker registry API.

This is inefficient and needs to be improved. Also, the latter function supports tokens but not proper authenticated tokens. This needs to be supported as well.

Lastly, each Docker module file stores it's entire URL that it needs for calls. This needs to be changed as well.