Turtle flags

- Add a new recipe type for turtle overlays, and recipe generator
   support for this recipe.
 - Add trans and rainbow flags.
 - Exclude .license files from the generated jar. I'm not thrilled on
   the whole .license file system, but it's kinda the easiest way.
 - Regenerate data. Yes, this is 90% of the commit :D.

buildSrc/src/main/kotlin/cc-tweaked.java-convention.gradle.kts

@@ -102,6 +102,10 @@ tasks.withType(JavaCompile::class.java).configureEach {
     options.encoding = "UTF-8"
 }
 
+tasks.processResources {
+    exclude("**/*.license")
+}
+
 tasks.withType(AbstractArchiveTask::class.java).configureEach {
     isPreserveFileTimestamps = false
     isReproducibleFileOrder = true