Create regulators ActionEnvironment class

Create the ActionEnvironment class used in the regulators action
framework.

Signed-off-by: Shawn McCarney <shawnmm@us.ibm.com>
Change-Id: I9d5493cd9d3b8594076e5a97628b61a152c8c500
diff --git a/phosphor-regulators/test/actions/meson.build b/phosphor-regulators/test/actions/meson.build
new file mode 100644
index 0000000..8c3d2b8
--- /dev/null
+++ b/phosphor-regulators/test/actions/meson.build
@@ -0,0 +1,11 @@
+test('phosphor-regulators-actions-tests',
+     executable('phosphor-regulators-actions-tests',
+                'action_environment_tests.cpp',
+                dependencies: [
+                    gmock,
+                    gtest,
+                ],
+                implicit_include_directories: false,
+                include_directories: phosphor_regulators_includes,
+     )
+)