added mainnet sync test values

sync_tests/csv_files/mainnet.csv

@@ -0,0 +1,2 @@
+identifier,env,tag_no1,tag_no2,cli_version1,cli_version2,cli_git_rev1,cli_git_rev2,start_sync_time1,end_sync_time1,start_sync_time2,end_sync_time2,last_slot_no1,last_slot_no2,start_node_secs1,start_node_secs2,sync_time_seconds1,sync_time1,sync_time_seconds2,sync_time2,total_chunks1,total_chunks2,platform_system,platform_release,platform_version,chain_size_bytes,eras_in_test,no_of_cpu_cores,byron_start_time,byron_start_epoch,byron_slots_in_era,byron_start_sync_time,byron_end_sync_time,byron_sync_duration_secs,byron_sync_speed_sps,shelley_start_time,shelley_start_epoch,shelley_slots_in_era,shelley_start_sync_time,shelley_end_sync_time,shelley_sync_duration_secs,shelley_sync_speed_sps,allegra_start_time,allegra_start_epoch,allegra_slots_in_era,allegra_start_sync_time,allegra_end_sync_time,allegra_sync_duration_secs,allegra_sync_speed_sps,mary_start_time,mary_start_epoch,mary_slots_in_era,mary_start_sync_time,mary_end_sync_time,mary_sync_duration_secs,mary_sync_speed_sps
+mainnet_0,mainnet,1.27.0,None,cardano-cli 1.27.0 - linux-x86_64 - ghc-8.10,,8fe46140a52810b6ca456be01d652ca08fe730bf,,10/05/2021 13:18:37,11/05/2021 04:25:46,,,29086428,,0,0,54426,15:07:06,0,00:00:00,1344,,Linux,4.19.95,#1-NixOS SMP Sun Jan 12 11:17:30 UTC 2020,9937810251,"[""byron"", ""shelley"", ""allegra"", ""mary""]",8,2017-09-28T21:44:51Z,1,21600,2021-05-10T13:18:39Z,2021-05-10T14:46:11Z,5252,4,2020-07-29T21:44:51Z,208,432000,2021-05-10T14:46:11Z,2021-05-10T17:51:32Z,11121,38,2020-12-16T21:44:51Z,236,432000,2021-05-10T17:51:32Z,2021-05-10T21:39:23Z,13671,31,2021-03-01T21:44:51Z,251,432000,2021-05-10T21:39:23Z,2021-05-11T04:25:46Z,24383,17

sync_tests/csv_files/mainnet_epoch_duration.csv

@@ -0,0 +1,59 @@
+identifier,epoch_no,sync_duration_secs
+mainnet_0,1,2
+mainnet_0,null,5250
+mainnet_0,208,192
+mainnet_0,209,259
+mainnet_0,210,278
+mainnet_0,211,293
+mainnet_0,212,306
+mainnet_0,213,388
+mainnet_0,214,374
+mainnet_0,215,372
+mainnet_0,216,366
+mainnet_0,217,369
+mainnet_0,218,396
+mainnet_0,219,398
+mainnet_0,220,402
+mainnet_0,221,373
+mainnet_0,222,380
+mainnet_0,223,388
+mainnet_0,224,407
+mainnet_0,225,403
+mainnet_0,226,398
+mainnet_0,227,446
+mainnet_0,228,440
+mainnet_0,229,413
+mainnet_0,230,485
+mainnet_0,231,500
+mainnet_0,232,586
+mainnet_0,233,512
+mainnet_0,234,491
+mainnet_0,235,506
+mainnet_0,236,484
+mainnet_0,237,293
+mainnet_0,238,600
+mainnet_0,239,781
+mainnet_0,240,783
+mainnet_0,241,735
+mainnet_0,242,795
+mainnet_0,243,692
+mainnet_0,244,793
+mainnet_0,245,972
+mainnet_0,246,1309
+mainnet_0,247,1209
+mainnet_0,248,1271
+mainnet_0,249,1408
+mainnet_0,250,1546
+mainnet_0,251,1609
+mainnet_0,252,1264
+mainnet_0,253,1680
+mainnet_0,254,1683
+mainnet_0,255,1731
+mainnet_0,256,1497
+mainnet_0,257,1957
+mainnet_0,258,1337
+mainnet_0,259,1947
+mainnet_0,260,2058
+mainnet_0,261,1508
+mainnet_0,262,1908
+mainnet_0,263,2179