Syntax: add clang-format (#2076)

Highlight .clang-format files as YAML

Co-authored-by: Ari Archer <truncateddinosour@gmail.com>
Co-authored-by: David Peter <mail@david-peter.de>

CHANGELOG.md

@@ -8,6 +8,8 @@
 
 ## Syntaxes
 
+- Mapped clang-format config file (.clang-format) to YAML syntax (@TruncatedDinosour)
+
 ## Themes
 
 ## `bat` as a library