[Encode] Add intra mode checking configuration for AV1

* [Encode] Add intra mode checking configuration for AV1
Add configurable intra mode checking parameters for different CU sizes (8x8, 16x16, 32x32) in AV1 VDENC command settings. Introduces platform-specific default values based on target usage modes and adds debug user setting to override with additional intra angle checking. This provides flexibility to tune intra prediction quality versus encoding performance trade-offs.

Author: chenhao5-Intel

media_softlet/agnostic/common/codec/hal/enc/av1/pipeline/encode_av1_user_setting.cpp

@@ -58,6 +58,12 @@ MOS_STATUS Av1Pipeline::InitUserSetting(MediaUserSettingSharedPtr userSettingPtr
         MediaUserSetting::Group::Sequence,
         "",
         false);
+    DeclareUserSettingKeyForDebug(
+        userSettingPtr,
+        "AV1 Encode Additional Intra Angles",
+        MediaUserSetting::Group::Sequence,
+        uint32_t(0),
+        false);
     DeclareUserSettingKeyForDebug(
         userSettingPtr,
         "Encode Enable NonDefault Mapping",