Merged PR 4842: Added support for track tags that allows multiple tag…

…s pointing to one module

This change added support for track tags that if there are multiple track tags pointing to the same overridden module, there must be one and only one track tag matching overridden modules. This will allow overriding module to soft-track the same module with various flavors across different generations of upstream changes.

In addition, when evaluation against track tags were made, the print levels are downgraded to warnings.

BaseTools/Plugin/OverrideValidation/ReadMe.md

@@ -35,9 +35,10 @@ This tool provides two types of validation, determined by the type of **tags** i
 
 - **Override**: Override validation, as indicated by override tags, intends to enforce the validity of a linkage. Thus if
 the target that is overridden is either not found or has an change since the last linkage update, the build will break.
-- **Track**: Track validation, indicated by track tags from tracking modules, intends to soft-tracking certain module updates
-across upstream changes. This validation will ignore this tag if the corresponding target is not found. However, if the
-target is found, the linkage has to match the current status of target, otherwise build will break.
+- **Track**: Track validation, indicated by track tags from tracking modules, intends to soft-track updates of certain
+module with various flavors across upstream changes. This validation will ignore this tag if the corresponding target
+is not found. If a single target is found in multiple track tags, there must be one and only one linkage that matches
+the current status of target, otherwise build will break.
 
   *Note*: If one module contains one or more track tags, at least one tracked target needs to be found, otherwise build
   will break.
@@ -79,6 +80,16 @@ Track record to be included in tracking module's inf:
 #Track : 00000002 | MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf | 5bca19892b2e9f4c00a74041fa6b1eab | 2021-12-07T04-25-21 | 5c76ea08864294e11f8d7d1ac2ccf76c72673c8f
 ```
 
+Track records to be included in tracking multiple flavors of the same module's inf (you should do not need this in a
+perfect world):
+
+``` cmd
+# Production build
+#Track : 00000002 | MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf | 5bca19892b2e9f4c00a74041fa6b1eab | 2021-12-07T04-25-21 | 5c76ea08864294e11f8d7d1ac2ccf76c72673c8f
+# Debug build
+#Track : 00000002 | MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf | dbfc0ece0cb8fa499ac2141c80107926 | 2022-02-09T00-31-30 | fd114d321703a32c4684d8411ba0fe7dd7012c14
+```
+
 Command to generate an override record for a target file or directory:
 
 ``` cmd