Fixed hero5 session pairing

General fixes, fixed typos, adds Spherical Download for GoPro Fusion …

…cameras

Fixed README badges

Add HERO5 video demo

Add fix for non connecting HERO5 Black

Add clip feature

Add ffmpegless-opencv

Fix bug in deleteFile where it would not accept full URLs

Add pairing code for HERO4 and HERO5

Fixed HERO5 turn on, added more examples, added streaming options, ad…

…ded wifi options