Changes to Default Performer Images (for Accessibility) (#1489)

* Changes to support custom URL paths
* Refactor image resolver code
* Initialise box files at startup
* Update packr

Co-authored-by: WithoutPants <53250216+WithoutPants@users.noreply.github.com>

vendor/github.com/gobuffalo/packr/v2/helpers.go

@@ -6,7 +6,6 @@ import (
 	"runtime"
 	"strings"
 
-	"github.com/gobuffalo/envy"
 	"github.com/gobuffalo/packr/v2/plog"
 )
 
@@ -31,7 +30,7 @@ func resolutionDirTestFilename(filename, og string) (string, bool) {
 		return ng, true
 	}
 
-	ng = filepath.Join(envy.GoPath(), "src", ng)
+	ng = filepath.Join(os.Getenv("GOPATH"), "src", ng)
 	if resolutionDirExists(ng, og) {
 		return ng, true
 	}