Add toString to ModSettings and RemapConfigurationSettings (#831)

This helps a bit with debugging code that uses them as you don't
have to open the object to see which mod/remap configuration we're
investigating.

src/main/java/net/fabricmc/loom/api/ModSettings.java

@@ -122,4 +122,9 @@ public abstract class ModSettings implements Named {
 
 	@Inject
 	public abstract Project getProject();
+
+	@Override
+	public String toString() {
+		return "ModSettings '" + getName() + "'";
+	}
 }

src/main/java/net/fabricmc/loom/api/RemapConfigurationSettings.java

@@ -142,4 +142,9 @@ public abstract class RemapConfigurationSettings implements Named {
 	private Provider<Boolean> defaultDependencyTransforms() {
 		return getSourceSet().map(sourceSet -> sourceSet.getName().equals(SourceSet.MAIN_SOURCE_SET_NAME) || sourceSet.getName().equals("client"));
 	}
+
+	@Override
+	public String toString() {
+		return "RemapConfigurationSettings '" + getName() + "'";
+	}
 }