fix hotornot crash when caller_id_numbers is in filter_list

[kageds]

Fix hotornot crash when caller_id_names is present in system_config/hotornot/filter_list

Before fix:

[root@d1k1 ~]# sup hotornot_maintenance rates_for_did 00447800000000 
Candidates:
                                     RATE NAME |   COST | INCREMENT |   MINIMUM | SURCHARGE |    WEIGHT |          PREFIX |   RATEDECK NAME |         VERSION |
                            outbound_GB_447891 | 0.0102 |        60 |        60 |       0.0 |        59 |          447891 |        ratedeck |                 |
                              outbound_GB_4478 | 0.2237 |        60 |        60 |       0.0 |        18 |            4478 |        ratedeck |                 |
                                outbound_GB_44 | 0.0035 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
                                 inbound_UK_44 |    0.0 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
Command failed: {'EXIT',{function_clause,[{knm_converters,normalize,[undefined],[{file,"src/converters/knm_converters.erl"},{line,101}]},{hon_util,matching_rate,3,[{file,"src/hon_util.erl"},{line,213}]},{lists,'-filter/2-lc$^0/1-0-',2,[{file,"lists.erl"},{line,1286}]},{lists,foldl,3,[{file,"lists.erl"},{line,1263}]},{hotornot_maintenance,rates_for_did,4,[{file,"src/hotornot_maintenance.erl"},{line,83}]},{sup,in_kazoo,4,[{file,"src/sup.erl"},{line,98}]},{rpc,'-handle_call_call/6-fun-0-',5,[{file,"rpc.erl"},{line,197}]}]}}

After fix:

[root@d1k1 ~]# sup hotornot_maintenance rates_for_did 00447800000000 
Candidates:
                                     RATE NAME |   COST | INCREMENT |   MINIMUM | SURCHARGE |    WEIGHT |          PREFIX |   RATEDECK NAME |         VERSION |
                            outbound_GB_447891 | 0.0102 |        60 |        60 |       0.0 |        59 |          447891 |        ratedeck |                 |
                              outbound_GB_4478 | 0.2237 |        60 |        60 |       0.0 |        18 |            4478 |        ratedeck |                 |
                                outbound_GB_44 | 0.0035 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
                                 inbound_UK_44 |    0.0 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
Matching:
                                     RATE NAME |   COST | INCREMENT |   MINIMUM | SURCHARGE |    WEIGHT |          PREFIX |   RATEDECK NAME |         VERSION |
                          * outbound_GB_447891 | 0.0102 |        60 |        60 |       0.0 |        59 |          447891 |        ratedeck |                 |
                              outbound_GB_4478 | 0.2237 |        60 |        60 |       0.0 |        18 |            4478 |        ratedeck |                 |
                                 inbound_UK_44 |    0.0 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
                                outbound_GB_44 | 0.0035 |        60 |        60 |       0.0 |        20 |              44 |        ratedeck |                 |
ok

[jamesaimonetti]

Merged. Thanks!