Start using a more complex three-endpoint device for endpoint_config testing.

package.json

@@ -32,7 +32,7 @@
     "pretty-quick": "pretty-quick",
     "self-check": "electron src-electron/main-process/electron-main.js selfCheck -g ./test/gen-template/zigbee/gen-templates.json",
     "version-stamp": "node src-script/zap-versionstamp.js",
-    "gen": "node src-script/zap-generate.js -z ./zcl-builtin/silabs/zcl.json -g ./test/gen-template/zigbee/gen-templates.json -i ./test/resource/save-file-test-regen.zap -o ./tmp",
+    "gen": "node src-script/zap-generate.js -z ./zcl-builtin/silabs/zcl.json -g ./test/gen-template/zigbee/gen-templates.json -i ./test/resource/three-endpoint-device.zap -o ./tmp",
     "gen2": "node src-script/zap-generate.js -z ./zcl-builtin/silabs/zcl.json -g ./test/gen-template/zigbee/gen-templates.json -i ./test/resource/generation-test-file-1.zap -o ./tmp",
     "genchip": "node src-script/zap-generate.js -z ./zcl-builtin/silabs/zcl.json -g ./test/gen-template/chip/gen-test.json -i ./test/resource/chip/chip_test.zap -o ./tmp",
     "pack": "node src-script/build-spa.js && electron-builder --dir",