Merge pull request #10243 from night1rider/SHE-doxygen-clean

Add SHE doxygen so documentation can pick up the API and notes.

Author: dgarske

doc/dox_comments/header_files/doxygen_groups.h

@@ -205,6 +205,7 @@
     \defgroup RIPEMD Algorithms - RIPEMD
     \defgroup RSA Algorithms - RSA
     \defgroup SHA Algorithms - SHA 128/224/256/384/512
+    \defgroup SHE Algorithms - SHE
     \defgroup SipHash Algorithm - SipHash
     \defgroup SrtpKdf Algorithm - SRTP KDF
     \defgroup SRP Algorithms - SRP