ShellPkg: Add YAML file for CI builds

https://bugzilla.tianocore.org/show_bug.cgi?id=2315

Add YAML file to the package directory with the
configuration of the checks to perform during a
CI build.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Zhichao Gao <zhichao.gao@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Zhichao Gao <zhichao.gao@intel.com>
Acked-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

ShellPkg/ShellPkg.ci.yaml

@@ -0,0 +1,55 @@
+## @file
+# CI configuration for ShellPkg
+#
+# Copyright (c) Microsoft Corporation
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+##
+{
+    "CompilerPlugin": {
+        "DscPath": "ShellPkg.dsc"
+    },
+    "CharEncodingCheck": {
+        "IgnoreFiles": []
+    },
+    "DependencyCheck": {
+        "AcceptableDependencies": [
+            "MdePkg/MdePkg.dec",
+            "MdeModulePkg/MdeModulePkg.dec",
+            "ShellPkg/ShellPkg.dec",
+            "NetworkPkg/NetworkPkg.dec"
+        ],
+        # For host based unit tests
+        "AcceptableDependencies-HOST_APPLICATION":[],
+        # For UEFI shell based apps
+        "AcceptableDependencies-UEFI_APPLICATION":[],
+        "IgnoreInf": []
+    },
+    "DscCompleteCheck": {
+        "DscPath": "ShellPkg.dsc",
+        "IgnoreInf": [
+            "ShellPkg/Application/ShellCTestApp/ShellCTestApp.inf",
+            "ShellPkg/Application/ShellExecTestApp/SA.inf",
+            "ShellPkg/Application/ShellSortTestApp/ShellSortTestApp.inf"
+            ]
+    },
+    "GuidCheck": {
+        "IgnoreGuidName": [],
+        "IgnoreGuidValue": [],
+        "IgnoreFoldersAndFiles": [],
+        "IgnoreDuplicates": [
+            "Shell=gUefiShellFileGuid", # by design
+        ]
+    },
+    "LibraryClassCheck": {
+        "IgnoreHeaderFile": []
+    },
+
+    ## options defined ci/Plugin/SpellCheck
+    "SpellCheck": {
+        "AuditOnly": True,           # Fails test but run in AuditOnly mode to collect log
+        "IgnoreFiles": [],           # use gitignore syntax to ignore errors in matching files
+        "ExtendWords": [],           # words to extend to the dictionary for this package
+        "IgnoreStandardPaths": [],   # Standard Plugin defined paths that should be ignore
+        "AdditionalIncludePaths": [] # Additional paths to spell check (wildcards supported)
+    }
+}