Issue #2342439 by pgautam, joshi.rohit100 | webchick: Some test modules/themes...

Issue #2342439 by pgautam, joshi.rohit100 | webchick: Some test modules/themes missing Testing package assignment in their info files.

core/modules/breakpoint/tests/modules/breakpoint_module_test/breakpoint_module_test.info.yml

 name: 'Breakpoint test module'
 type: module
 description: 'Test module for breakpoint.'
+package: Testing
 version: VERSION
 core: 8.x
 

core/modules/responsive_image/tests/modules/responsive_image_test_module/responsive_image_test_module.info.yml

 name: 'Responsive image test theme'
 type: module
 description: 'Test theme for responsive image.'
+package: Testing
 version: VERSION
 core: 8.x