[Feature] Dump function to clone all the gists to local

[KEINOS]

gisty.Dump() to clone all the gist repos.

func gisty.Dump(outDir string, ignore ...gisty.Ignore) error

type gisty.Ignore func(gistInfo gisty.GistInfo) bool

• Example usage

var IgnorePrivate gisty.Ignore = func(gistInfo gisty.GistInfo) bool {
    return !gistInfo.IsPublic
}

var IgnoreList gisty.Ignore = func(gistInfo gisty.GistInfo) bool {
    mapIgnore := map[string]struct{} {
        "7101f542be23e5048198e2a27c3cfda8": struct{}{},
        "da7101f542be23e5048198e2a27c3cf8": struct{}{},
    }
    
    _, ok := mapIgnore[gistInfo.GistID]

    return ok
}

pathDirOut := "."

err := gisty.Dump(pathDirOut, IgnorePrivate, IgnoreList)
if err != nil {
    log.Fatal(err)
}