IPBasedAnalyzer: Call TapPacket() when skipping

When skip_further_processing() is called, a TapAnalyzer should still see
the packets as skipped with SkipReason "skipping".

src/packet_analysis/protocol/ip/SessionAdapter.h

@@ -29,6 +29,7 @@ enum class SkipReason : uint8_t {
     Unknown,        ///< Placeholder if no other value fits.
     BadChecksum,    ///< The packet's checksum is invalid and ignore_checksums is false.
     BadProtoHeader, ///< Something was off with the lengths or offsets in the protocol header.
+    SkipProcessing, ///< The session adapter's connection had skip_further_processing called on it.
 };
 
 /**