chore: Improve attribution by ignoring bulk formatting

This file lists revisions that should be ignored when considering
attribution for the actual code written. Code style changes should
not be considered as modifications with regards to attribution.

To see clean and meaningful blame information.

```
$ git blame important.py --ignore-revs-file .git-blame-ignore-revs
```

To configure git to automatically ignore revisions listed in a file on every call to git blame.

```
$ git config blame.ignoreRevsFile .git-blame-ignore-revs
```

Author: jcfr

.git-blame-ignore-revs

@@ -0,0 +1,16 @@
+#
+# This file lists revisions that should be ignored when considering
+# attribution for the actual code written.  Code style changes should
+# not be considered as modifications with regards to attribution.
+#
+# To see clean and meaningful blame information.
+# $ git blame important.py --ignore-revs-file .git-blame-ignore-revs
+#
+# To configure git to automatically ignore revisions listed in a file
+# on every call to git blame.
+# $ git config blame.ignoreRevsFile .git-blame-ignore-revs
+#
+# Ignore changes introduced when doing global file format changes
+
+# Switch to uncrustify (#517)
+cfd179711f413aa8e0da9c2f437ad4f8938d5f70