[tests] Inject account manager and device settings manager in tests that launch modular.

- These are hard dependencies that modular needs to have available

- flutter_screencap_test fails with and without the flag flip, but it still needs to be
updated to inject the services into the test environment

TESTED: ran driver_example_mod_tests, slider_mod_tests, locally on NUC
without the flag flip and saw driver_example_mod_tests, slider_mod_tests pass.
Then flipped the flag and saw those 2 tests fail. Then with this CL they pass again.

Change-Id: Ib1d11185ddd492a06df27eb1ea2370984bbeba51
diff --git a/bin/flutter_screencap_test/meta/flutter_screencap_test.cmx b/bin/flutter_screencap_test/meta/flutter_screencap_test.cmx
index 69665d2..e6c6b64 100644
--- a/bin/flutter_screencap_test/meta/flutter_screencap_test.cmx
+++ b/bin/flutter_screencap_test/meta/flutter_screencap_test.cmx
@@ -2,6 +2,8 @@
     "facets": {
         "fuchsia.test": {
             "injected-services": {
+                "fuchsia.auth.account.AccountManager": "fuchsia-pkg://fuchsia.com/account_manager#meta/account_manager.cmx",
+                "fuchsia.devicesettings.DeviceSettingsManager": "fuchsia-pkg://fuchsia.com/device_settings_manager#meta/device_settings_manager.cmx",
                 "fuchsia.fonts.Provider": "fuchsia-pkg://fuchsia.com/fonts#meta/fonts.cmx",
                 "fuchsia.sysmem.Allocator": "fuchsia-pkg://fuchsia.com/sysmem_connector#meta/sysmem_connector.cmx",
                 "fuchsia.tracelink.Registry": "fuchsia-pkg://fuchsia.com/trace_manager#meta/trace_manager.cmx",
diff --git a/examples/test/driver_example_mod/meta/driver_example_mod_tests.cmx b/examples/test/driver_example_mod/meta/driver_example_mod_tests.cmx
index ae87c07..3382a82 100644
--- a/examples/test/driver_example_mod/meta/driver_example_mod_tests.cmx
+++ b/examples/test/driver_example_mod/meta/driver_example_mod_tests.cmx
@@ -2,6 +2,8 @@
     "facets": {
         "fuchsia.test": {
             "injected-services": {
+                "fuchsia.auth.account.AccountManager": "fuchsia-pkg://fuchsia.com/account_manager#meta/account_manager.cmx",
+                "fuchsia.devicesettings.DeviceSettingsManager": "fuchsia-pkg://fuchsia.com/device_settings_manager#meta/device_settings_manager.cmx",
                 "fuchsia.fonts.Provider": "fuchsia-pkg://fuchsia.com/fonts#meta/fonts.cmx",
                 "fuchsia.sysmem.Allocator": "fuchsia-pkg://fuchsia.com/sysmem_connector#meta/sysmem_connector.cmx",
                 "fuchsia.tracelink.Registry": "fuchsia-pkg://fuchsia.com/trace_manager#meta/trace_manager.cmx",
diff --git a/public/dart/fuchsia_modular/examples/slider_mod/meta/slider_mod_tests.cmx b/public/dart/fuchsia_modular/examples/slider_mod/meta/slider_mod_tests.cmx
index e214cd9..f89e61e 100644
--- a/public/dart/fuchsia_modular/examples/slider_mod/meta/slider_mod_tests.cmx
+++ b/public/dart/fuchsia_modular/examples/slider_mod/meta/slider_mod_tests.cmx
@@ -2,6 +2,8 @@
     "facets": {
         "fuchsia.test": {
             "injected-services": {
+                "fuchsia.auth.account.AccountManager": "fuchsia-pkg://fuchsia.com/account_manager#meta/account_manager.cmx",
+                "fuchsia.devicesettings.DeviceSettingsManager": "fuchsia-pkg://fuchsia.com/device_settings_manager#meta/device_settings_manager.cmx",
                 "fuchsia.fonts.Provider": "fuchsia-pkg://fuchsia.com/fonts#meta/fonts.cmx",
                 "fuchsia.sysmem.Allocator": "fuchsia-pkg://fuchsia.com/sysmem_connector#meta/sysmem_connector.cmx",
                 "fuchsia.tracelink.Registry": "fuchsia-pkg://fuchsia.com/trace_manager#meta/trace_manager.cmx",