Add power limit policy and client sample driver (#1152)

This PR adds power limit policy and client driver as samples to use OS native power limit interfaces.

.github/CODEOWNERS

@@ -46,6 +46,7 @@
 
 # Energy Efficiency
 /pofx/WDF/ @microsoft/ee-devs
+/powerlimit/ @microsoft/ee-devs
 /simbatt/ @microsoft/ee-devs
 /thermal/ @microsoft/ee-devs
 

exclusions.csv

@@ -3,3 +3,5 @@ audio\acx\samples\audiocodec\driver,*,,22621,Only NI: error C1083: Cannot open i
 general\dchu\osrfx2_dchu_extension_loose,*|x64,,22621,Only NI: Only x64: Fails to build
 general\dchu\osrfx2_dchu_extension_tight,*|x64,,22621,Only NI: Only x64: Fails to build
 prm,*,,22621,Only NI: Not supported on NI.
+powerlimit\plclient,*,,22621,Only build on Ge and above.
+powerlimit\plpolicy,*,,22621,Only build on Ge and above.

powerlimit/plclient/README.md

@@ -0,0 +1,17 @@
+---
+page_type: sample
+description: "Demonstrates a simulated power limit device."
+languages:
+- cpp
+products:
+- windows
+- windows-wdk
+---
+
+# plclient - Simulated Power Limit Client Driver
+
+This sample is a driver for a simulated power limit client device.
+
+## Universal Windows Driver Compliant
+
+The plclient sample provides the source code for a power limit device that supports power limit management by the operating system.

powerlimit/plclient/plclient.asl

@@ -0,0 +1,10 @@
+DefinitionBlock ("ACPITABL.DAT", "SSDT", 0x02, "MSFT", "simulatr", 0x1) {
+    Device (\_SB.SOC0) {
+        Name (_HID, "PLCL0001")
+        Name (_UID, 1)
+    }
+    Device (\_SB.GPU1) {
+        Name (_HID, "PLCL0001")
+        Name (_UID, 2)
+    }
+}