PrmPkg: Changes for edk2 repo transition

Updates the Readme.md files to remove information that was specific
to the package in edk2-staging and adds key definitions being added
for PRM support in the ACPI Specification.

Adds PrmPkg/PrmPkg.ci.yaml to support CI.

Adds PrmPkg to .pytool/CISettings.py.

Adds PrmPkg maintainers to Maintainers.txt.

Cc: Andrew Fish <afish@apple.com>
Cc: Kang Gao <kang.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Liu Yun <yun.y.liu@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>

PrmPkg/PrmPkg.ci.yaml

@@ -0,0 +1,110 @@
+## @file
+# CI configuration for PrmPkg
+#
+# Copyright (c) Microsoft Corporation<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+    ## options defined .pytool/Plugin/LicenseCheck
+    "LicenseCheck": {
+        "IgnoreFiles": []
+    },
+
+    "EccCheck": {
+        ## Exception sample looks like below:
+        ## "ExceptionList": [
+        ##     "<ErrorID>", "<KeyWord>"
+        ## ]
+        "ExceptionList": [
+          "5001", "PRM_HANDLER_EXPORT",
+          "8006", "PRM_HANDLER_EXPORT"
+        ],
+        ## Both file path and directory path are accepted.
+        "IgnoreFiles": [
+          "Library/DxePrmContextBufferLib/UnitTest",
+          "Library/DxePrmModuleDiscoveryLib/UnitTest",
+          "Samples",
+          "Test"
+        ]
+    },
+
+    ## options defined .pytool/Plugin/CompilerPlugin
+    "CompilerPlugin": {
+        "DscPath": "PrmPkg.dsc"
+    },
+
+    ## options defined .pytool/Plugin/HostUnitTestCompilerPlugin
+    "HostUnitTestCompilerPlugin": {
+        "DscPath": "Test/PrmPkgHostTest.dsc"
+    },
+
+    ## options defined .pytool/Plugin/CharEncodingCheck
+    "CharEncodingCheck": {
+        "IgnoreFiles": []
+    },
+
+    ## options defined .pytool/Plugin/DependencyCheck
+    "DependencyCheck": {
+        "AcceptableDependencies": [
+            "MdeModulePkg/MdeModulePkg.dec",
+            "MdePkg/MdePkg.dec",
+            "PrmPkg/PrmPkg.dec",
+            "ShellPkg/ShellPkg.dec",
+            "UefiCpuPkg/UefiCpuPkg.dec"
+        ],
+        # For host based unit tests
+        "AcceptableDependencies-HOST_APPLICATION":[
+            "UnitTestFrameworkPkg/UnitTestFrameworkPkg.dec"
+        ],
+        # For UEFI shell based apps
+        "AcceptableDependencies-UEFI_APPLICATION":[],
+        "IgnoreInf": []
+    },
+
+    ## options defined .pytool/Plugin/DscCompleteCheck
+    "DscCompleteCheck": {
+        "IgnoreInf": [],
+        "DscPath": "PrmPkg.dsc"
+    },
+
+    ## options defined .pytool/Plugin/HostUnitTestDscCompleteCheck
+    "HostUnitTestDscCompleteCheck": {
+        "IgnoreInf": [""],
+        "DscPath": "Test/PrmPkgHostTest.dsc"
+    },
+
+    ## options defined .pytool/Plugin/GuidCheck
+    "GuidCheck": {
+        "IgnoreGuidName": [],
+        "IgnoreGuidValue": [],
+        "IgnoreFoldersAndFiles": [],
+        "IgnoreDuplicates": [],
+    },
+
+    ## options defined .pytool/Plugin/LibraryClassCheck
+    "LibraryClassCheck": {
+        "IgnoreHeaderFile": []
+    },
+
+    ## options defined .pytool/Plugin/SpellCheck
+    "SpellCheck": {
+        "AuditOnly": False,
+        "IgnoreFiles": [],          # use gitignore syntax to ignore errors
+                                    # in matching files
+        "ExtendWords": [            # words to extend to the dictionary for this package
+          "buffe",                  # note: appears in buffer ascii dump in documentation
+          "iptor",                  # note: appears in buffer ascii dump in documentation
+          "keepoptionalheader",
+          "odule",                  # note: appears in buffer ascii dump in documentation
+          "oemid",
+          "prmopreg",
+          "prmpecofflib",
+          "prmpkg",
+          "prmssdtinstall"
+        ],
+        "IgnoreStandardPaths": [],   # Standard Plugin defined paths that
+                                     # should be ignore
+        "AdditionalIncludePaths": [] # Additional paths to spell check
+                                     # (wildcards supported)
+    }
+}