scripted-diff: Rename CAddrMan to AddrMan

-BEGIN VERIFY SCRIPT-
git grep -l CAddrMan src/ test/ | xargs sed -i 's/CAddrMan/AddrMan/g'
-END VERIFY SCRIPT-

src/addrman_impl.h

@@ -138,8 +138,8 @@ public:
 
     const std::vector<bool>& GetAsmap() const;
 
-    friend class CAddrManTest;
-    friend class CAddrManDeterministic;
+    friend class AddrManTest;
+    friend class AddrManDeterministic;
 
 private:
     //! A mutex to protect the inner data structures.