apple-sdk: add license to be in complaince

This is a major legal issue that could have been missed for a simple nix
eval.

Author: Eveeifyeve

pkgs/by-name/ap/apple-sdk/package.nix

@@ -107,6 +107,14 @@ stdenvNoCC.mkDerivation (
     meta = {
       description = "Frameworks and libraries required for building packages on Darwin";
       homepage = "https://developer.apple.com";
+      license = {
+        deprecated = false;
+        fullName = "Apple Developer Program License Agreement";
+        shortName = "apple-developer-program";
+        spdxId = "unknown";
+        free = false;
+        url = "https://developer.apple.com/support/terms/apple-developer-program-license-agreement/";
+      };
       teams = [ lib.teams.darwin ];
       platforms = lib.platforms.darwin;
       badPlatforms = [ lib.systems.inspect.patterns.is32bit ];