scrapers: added som tag substitutions for JAVR scrapers (#1107)

* Updated javutil.go - skiptags++ "dmm exclusive"

Found the first new extra skip tag, on javbus. Was in place of the "VR Exclusive" tag that R18 had for the same scene.

* Update javutil.go

JAVLibrary uses "huge cock" where R18 (and JAVBUS and JAVDatabase) use "Huge Dick - Large Dick"

* Update javutil.go

another JAVLibrary difference - "other fetish" used where others used "other fetishes"

* gofmt

whoops, tab bad, space good

* Update javutil.go

one more tag from JAVBUS

* Update javutil.go

"threesome / foursome" a la R18

* Update javutil.go

3P, 4P tag from javlibrary

pkg/scrape/javutil.go

@@ -28,6 +28,8 @@ func ProcessJavrTag(tag string) string {
 		"single work":            true,
 		"solo work":              true,
 		"solowork":               true,
+		"dmm exclusive":          true,
+		"over 4 hours":           true,
 	}
 	if skiptags[taglower] {
 		return ""
@@ -36,13 +38,17 @@ func ProcessJavrTag(tag string) string {
 	// Map some tags to normalize so different sources match
 	// TODO: this mapping is totally incomplete and needs help from community to fill
 	maptags := map[string]string{
-		"blow":        "blowjob",
-		"blow job":    "blowjob",
-		"kiss":        "kiss kiss",
-		"kiss / kiss": "kiss kiss",
-		"prostitute":  "club hostess & sex worker",
-		"prostitutes": "club hostess & sex worker",
-		"sun tan":     "suntan",
+		"blow":               "blowjob",
+		"blow job":           "blowjob",
+		"kiss":               "kiss kiss",
+		"kiss / kiss":        "kiss kiss",
+		"prostitute":         "club hostess & sex worker",
+		"prostitutes":        "club hostess & sex worker",
+		"sun tan":            "suntan",
+		"huge cock":          "huge dick - large dick",
+		"other fetish":       "other fetishes",
+		"threesome/foursome": "threesome / foursome",
+		"3P, 4P":             "threesome / foursome",
 	}
 	if maptags[taglower] != "" {
 		return maptags[taglower]