By Joseph Salvador His workout tour continues with another young NFL wide receiver. View the original article to see embedded media. Colin Kaepernick’s national tour of playing with NFL players will continue in Seattle, he announced via Twitter on Tuesday. “Headed to Seattle to get some work in with Aaron Fuller tomorrow!” Kaepernick said in the tweet. The former 49ers quarterback posted a screenshot of the Seahawks wideout replying to his Instagram story with the text, “Slide out to Seattle!! Need that work @Kaepernick 7.” Needless to say, it looks like he’s taking him up on his offer. Fuller…