Add control channels demappers tests

3GPP TS 45.002 version 15.1.0 Release 15
Table 3 : Mapping of logical channels onto physical channels (see subclauses 6.3, 6.4, 6.5)
Table 4 : Mapping of logical channels onto physical channels (see subclauses 6.3, 6.4, 6.5)
Figure 8a: TDMA frame mapping for FCCH + SCH + BCCH + CCCH
Figure 8b: TDMA frame mapping for FCCH + SCH + BCCH + CCCH + SDCCH/4(0...3) + SACCH/4(0...3)

Five of the six tests currently fail and are marked with
@unittest.expectedFailure. Fixes in subsequent commits.

Change-Id: I33b0948832a0c2506bffd389cc134c3236c74d27
diff --git a/lib/qa_utils/burst_sink_impl.h b/lib/qa_utils/burst_sink_impl.h
index e87422d..15e3bcf 100644
--- a/lib/qa_utils/burst_sink_impl.h
+++ b/lib/qa_utils/burst_sink_impl.h
@@ -36,6 +36,8 @@
       std::vector<int> d_timeslots;
       std::vector<std::string> d_burst_data;
       pmt::pmt_t d_bursts;
+      std::vector<uint8_t> d_sub_types;
+      std::vector<uint8_t> d_sub_slots;
      public:
       burst_sink_impl();
       ~burst_sink_impl();
@@ -44,6 +46,8 @@
       virtual std::vector<int> get_timeslots();
       virtual std::vector<std::string> get_burst_data();
       virtual pmt::pmt_t get_bursts();
+      virtual std::vector<uint8_t> get_sub_types();
+      virtual std::vector<uint8_t> get_sub_slots();
     };
 
   } // namespace gsm